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Dr. Mihir Rupani
Assistant Professor
Department of Community Medicine
Government Medical College, Bhavnagar
NATIONAL VECTOR BORNE
DISEASE CONTROL PROGRAM:
Guidelines for program
implementation
INTRODUCTION
• Vector borne diseases:
Pose an immense public health concern
Major impediments in the path of socio-
economic development
Historical perspective
• National Malaria Eradication Programme
(NMEP) which was being implemented in the
country since 1958, was reviewed in 1977 and
revised guidelines for Modified Plan of
Operation (MPO) were issused to all States &
UTs
• Due to various outbreaks in the country
malaria situation was reviewed in 1994 by
an Expert Committee.
• In pursuance of the Expert Committee's
recommendations, the Directorate of NMEP
brought out operational manual for Malaria
Action Programme (MAP) in 1995
Historical perspective
• The Directorate of NMEP was renamed as
Directorate of National Anti Malaria
Programme (NAMP) in March, 1999.
• Directorate of NAMP was dealing with three
centrally sponsored schemes namely Malaria,
Filaria and Kala-azar control and in addition,
was looking after the prevention and control
of Dengue and Japanese Encephalitis.
Historical perspective
• With a view to converge Dengue/Dengue
Haemorrhagic feverand Japanese Encephalitis
with the three on-going centrally sponsored
schemes [National Anti-Malaria Programme
(NAMP), National Filaria Control Programme
(NFCP) and Kala-azar Control Programme],
the integrated scheme was renamed as
National Vector Borne Disease Control
Programme (NVBDCP) from 2nd December,
2003.
Historical perspective
• In 2006, Chikungunya re-emerged in the
country and this was also brought within the
purview of Directorate of NVBDCP.
Historical perspective
NVBDCP – National Vector Borne
Disease Control Program
• Earlier the Vector Borne Diseases were managed
under separate National Health Programs
• NVBDCP is an umbrella program for prevention
and control of 6 vector borne diseases namely:
Malaria
Dengue
Chikungunya
Japanese Encephalitis
Kala-Azar
Filaria (Lymphatic Filariasis)
• It is an integral component of NHM and is
implemented under the overall umbrella of
NHM
• The Programme is monitored at the National
level through the mechanisms established
under NHM.
NVBDCP
NVBDCP
• The Directorate is responsible for framing
technical guidelines & policies as to guide the
states for implementation of Program
strategies.
• Responsible for budgeting and planning the
logistics pertaining to central sector.
• Monitoring of implementation through
regular reports and returns of MIS is done.
NVBDCP
• The Directorate carries out evaluation of
Program implementation from time to time.
• The resource gap is also assessed as to
provide an equitable support based on the
magnitude of the problem.
• Under the Union Ministry of H&FW, GoI, 17
ROH & FW are functioning.
NVBDCP
• Every state has state vector borne diseases
control component under the Directorate of
Health Services
• There is a system of coordination between the
state and centre for effective implementation
and monitoring of Program.
NVBDCP
• At the district level, District Malaria Offices
have been established under District Chief
Medical and Health Offices by the states.
• Key unit for planning and monitoring of
Program under a technical officer.
• At present, 565 District Malaria Units are
functioning.
Program objectives and strategies
• NVBDCP strategies comprise
Early diagnosis, prompt and complete
treatment
Integrated vector management including
promotion of personal protective measures
and biological measures
BCC, capacity building through integrated
training at all tiers of health care delivery
system
Monitoring and evaluation
• Partnerships
Other national health programs
Non-health sector departments
Civil society organizations (NGOs, CBOs, self-
help groups, panchayati raj institutions)
Corporate sectors
Medical academia and professional bodies
Program objectives and strategies
• LLINs
Having efficacy of 3-5 years have been
introduced
Program objectives and strategies
• Improve efficiency and quality of services at
primary, secondary and tertiary levels
• Primary level
ASHA under NHM, Anganwadi workers of ICDS
and Community Volunteers of NGOs would be
trained to serve Fever Treatment Depots
(FTDs)
PHCs, CHCs: equipped to manage PF malaria
Lab surveillance enhanced
Program objectives and strategies
• Improve efficiency and quality of services at
primary, secondary and tertiary levels
• Secondary level
Training of Medical Officers, Lab Technicians
and Community Volunteers of public and
private sector
District level hospitals: equipped with
ventilators and lab services
Medical audit
Program objectives and strategies
• Improve efficiency and quality of services at
primary, secondary and tertiary levels
• Tertiary level
Medical college hospital: manage all referrals
Undertake therapeutic efficacy studies of
combi-pack and effectiveness of rapid
diagnostic kits
Rapid diagnosis for management of severe
malaria cases
Program objectives and strategies
• Environmental Management
Proper drainage and sanitation
Program objectives and strategies
• Government of India provides technical
support as well as logistics
• State governments ensure program
implementation
• The centre and the states monitor the
program closely and high-risk areas are
identified for focused attention
Program objectives and strategies
Malaria – problematic states
• Chattisgarh, Jharkhand, Maharashtra, West
Bengal and Orissa – have registered maximum
malaria cases in India (since 2007)
• Out of them, Orissa and Maharashtra have
contributed to most of the deaths due to
malaria
• Other high malaria burden states – MP, UP,
Gujarat, Rajasthan, Karnataka
MALARIA
• The program aims to maintain Annual Blood
Examination Rate (ABER) of > 10% by active
and passive surveillance and bring down
Annual Parasite Incidence (API) to 1.3 or less
by 2012
• 25% reduction in morbidity and mortality by
2010 and 50% by 2012 (baseline year 2006)
MALARIA
• To strengthen malaria control, GoI is providing
cash assistance to states for engaging multi-
purpose workers (MPWs) on contractual basis
in about 200 identified high endemic districts
during the XI Five Year Plan
MALARIA
• Provision has been made under external
assistance for positioning Malaria Technical
Supervisors (MTS) in high endemic areas to
strengthen supportive supervision and micro-
level monitoring
• Each MTS to cover a population of 2.5 lacs in
selected areas of the high endemic districts
MALARIA
• Under NVBDCP, all fever cases are required to
be immediately examined
• Positive cases are provided prompt and
complete treatment
• Incentives have been considered for ASHAs
for performing Rapid Diagnostic Tests (RDTs),
preparation of slides and administering
complete treatment
MALARIA
• ASHA can also arrange to transport severe
malaria cases to the referral centers with the
expenditure borne out of funds from untied
grants of NHM
• Funds available with the Village Health and
Sanitation Committee (VHSC) can also be
utilized (this grant may also be utilized for
source reduction of mosquito breeding sites)
GUIDELINES UNDER NVBDCP:
MALARIA
• Surveillance and case management
Conventional diagnostic method through
microscopy remains the gold standard
However, rapid diagnostic kits (Pf kits) are
provided for quick treatment in difficult and
inaccessible areas with P. falciparum
predominance
• Integrated Vector Control Management
IRS: 2 rounds of DDT/synthetic pyrethroid or 3
rounds of malathion based on the insecticide
resistance studies and epidemiological
information.
IRS to be done in all areas with API>2 or
above.
Priority of spray to be given to high risk areas
with API or SPR 5 and above
GUIDELINES UNDER NVBDCP:
MALARIA
• Integrated Vector Control Management
(contd.)
Use of ITMN
Reduction of breeding sites: use of larvivorous
fish – Gambusia and Poecilia (Guppy)
GUIDELINES UNDER NVBDCP:
MALARIA
• Epidemic preparedness and Response (EPR)
Objectives are early identification and control
of epidemic
Early warning signals which include
epidemiological & entomological parameters ,
climatic factors (rain fall, temperature and
humidity), operational factors (inadequacy
and lack of trained manpower) are monitored
GUIDELINES UNDER NVBDCP:
MALARIA
• Epidemic preparedness and Response (EPR)
Proper linkage with Integrated Diseases
Surveillance Programme (IDSP) at district level
for obtaining early warning signals on regular
basis
District should have rapid response team
consisting of epidemiologist, entomologist, lab
technician, Medical Officer, health workers,
supervisors, community volunteers
GUIDELINES UNDER NVBDCP:
MALARIA
• Supportive interventions
Training and capacity building
Integrated training programme have been
designed for different categories of health
care functionaries
GUIDELINES UNDER NVBDCP:
MALARIA
• Supportive interventions
Behaviour Change Communication
Empowers people to take rational and
informed decisions through appropriate
knowledge
Inculcates necessary skills and optimism
Stimulates pertinent action
Reinforces the same through peers and
influencers.
GUIDELINES UNDER NVBDCP:
MALARIA
• Supportive interventions
Inter-sectoral Collaboration
Anti Malaria Month is being observed with
enhanced level of campaigning just before
the peak transmission season
GUIDELINES UNDER NVBDCP:
MALARIA
• Innovations/modifications have been
proposed to be intensified during XI Five Year
Plan
For focused interventions, 206 districts have
been identified as high malaria endemic
Of which, 100 districts – high API and Pf
rate>30%
Further out of these 100, 61 districts
identified as very high malaria endemic
districts
GUIDELINES UNDER NVBDCP:
MALARIA
• Innovations/modifications have been
proposed to be intensified during XI Five Year
Plan
Geographical Information System (GIS)
mapping for focused intervention in high risk
prioritized districts
GUIDELINES UNDER NVBDCP:
MALARIA
• Innovations/modifications have been
proposed to be intensified during XI Five Year
Plan
Linkage with NHM and use of NHM
Institutions for prevention and control of
VBDs
Up-scaling use of bed nets /Long Lasting
Insecticide Treated Nets (LLINs)
GUIDELINES UNDER NVBDCP:
MALARIA
• Innovations/modifications have been
proposed to be intensified during XI Five Year
Plan
Early diagnosis and treatment by
Strengthening of human resource
Scaling up of Rapid Diagnostic Kit (RDK)
Scaling up of Artemisinin-based Combination
Therapy (ACT)
GUIDELINES UNDER NVBDCP:
MALARIA
• Monitoring of drug resistance and insecticide
resistance:
15 studies are conducted in a year through Pf
monitoring teams through ROH&FWs and
National Institute of Malaria Research (NIMR)
at different places
Based on their report, resistance areas are
identified and their drug policy changed
GUIDELINES UNDER NVBDCP:
MALARIA
FILARIA (endemicity)
• Indigenous cases have been reported from
about 250 districts in 20 states/Union
Territories.
FILARIA (endemicity)
FILARIA (endemicity)
• Indigenous filaria cases have been recorded
from Andhra Pradesh, Assam, Bihar,
Chhattisgarh, Goa, Jharkhand, Karnataka,
Gujarat, Kerala, Madhya Pradesh,
Maharashtra, Orissa, Tamil Nadu, Uttar
Pradesh, West Bengal, Pondicherry, Andaman
& Nicobar Islands, Daman & Diu, Dadra &
Nagar Haveli and Lakshadweep.
FILARIA (endemicity)
• States free from indigenously acquired filarial
infection: North-Western States/UTs namely
Jammu & Kashmir, Himachal Pradesh, Punjab,
Haryana, Chandigarh, Rajasthan, Delhi and
Uttaranchal and North-Eastern States namely
Sikkim, Arunachal Pradesh, Nagaland,
Meghalaya, Mizoram, Manipur and Tripura
FILARIA
• Population living in endemic countries is now
covered with annual MDA with DEC +
Albendazole, with aim of elimination of Filaria
by 2015
• Patients suffering from hydrocele are
motivated for surgery
• ASHA and other volunteers, after due training,
would be involved in MDA by the local health
authority
• ELF by 2015:
LF ceases to be a public health problem i.e.
the number of microfilaria carriers is less than
one per cent in endemic population
Children born after initiation of ELF are free
from circulating antigenaemia.
Absence of antigenaemia among children is
considered as evidence for absence of
transmission and new infection.
FILARIA
GUIDELINES UNDER NVBDCP:
FILARIA
• National Filaria Control Program is being
implemented in the country through 206
filaria control units, 199 filaria clinics and 27
survey units
• Strategies under NFCP:
Detection and treatment to the patients with
anti-filaria drug
Anti-larval work in urban areas covered under
NFCP
• Filaria has been targeted for elimination
globally by 2020
• National Health Policy (2002) aims to
eliminate lymphatic filariasis (ELF) by 2015
• MDA being implemented since 2004 in 250
districts in 15 states and 5 UTs
MDA to be undertaken by District Malaria
Officer or District Vector Borne Disease
Control Officer with staff and officials of NFCP
GUIDELINES UNDER NVBDCP:
FILARIA
Major activities under ELF
• Sensitization and training of district and state
level officers
• Media sensitization and District Co-ordination
Committee meeting under the chairmanship
of district collector
• Microfilaria survey by trained technicians
(especially for collection of blood in the night
and its examination) before MDA in sentinel
and random sites in each district
• Identification of manifestations (lymphedema
or hydrocele), line-listing of cases and
updating every year with addition or deletion
on yearly basis to provide services for
morbidity management
• Collection, compilation and analysis of data
and feedback to state as well as centre
• Assessment through involvement of medical
college faculty, ROH&FW and ICMR
institutions
Major activities under ELF
• Hydrocele operations for relief of the patients
• Training on home based care for morbidity
management
• Vector control: one or two rounds of IRS with
DDT (1g/m2
) in endemic areas
• Anti-larval measures: temphos in water tanks
every week and application of Mineral
Larvicidal Oils (MLO) on water surface
• Biological control; Environmental engineering
Major activities under ELF
Kala Azar endemicity
Kala Azar endemicity
• Endemic in eastern States of India namely
Bihar, Jharkhand, Uttar Pradesh and West
Bengal
• 48 districts endemic; sporadic cases reported
from a few other districts
• Estimated 129 million population at risk in 4
states
• Mostly poor socio-economic groups of
population primarily living in rural areas are
affected
KALA AZAR
• Annual incidence of Kala Azar will be reduced
to less than 1 per 10,000 population at sub-
district level with the aim of eliminating Kala
Azar by 2010
• Kala Azar Technical Supervisors (KTS) are
provided in affected districts to strengthen
early detection, complete treatment and
prevention and control including residual
spray (supported under World Bank assisted
project)
• It is proposed that ASHA workers will be
involved in identification of Kala azar cases
and ensuring their complete treatment
KALA AZAR
GUIDELINES UNDER NVBDCP:
KALA AZAR
• Main strategic components for elimination:
Case detection and treatment: done through
the existing Primary health care system
supplemented by periodic annual active
searches (Kala azar fortnight)
Interruption of transmission through vector
control: undertaking 2 rounds of DDT spray
annually in PHC areas reporting kala azar
incidence under direct supervision and
monitoring by NHM institutions
• First round of IRS: february-march
• Second round: may-june
Just before the onset of monsoon as some
parts of Bihar become inaccessible in
monsoon
• IRS (with DDT 50%) is supplemented with
efforts to improve sanitation
• In addition, environmental measures and
personal protection from sandfly bites are
encouraged
GUIDELINES UNDER NVBDCP:
KALA AZAR
• IEC & inter-sectoral convergence
• Diagnosis: Suspected cases as per the
standard case definition are referred for
clinical case examination and tested with
rapid dipstick test rK39
GUIDELINES UNDER NVBDCP:
KALA AZAR
• Treatment: as per the drug policy of GoI,
Sodium Stibo Gluconate (SSG) is the first line
treatment of Kala azar
The oral drug, Miltefosine has been
introduced on a pilot basis in 6 districts of
Bihar and 2 districts each of Jharkhand and
West Bengal
Paramomycin has also been approved
GUIDELINES UNDER NVBDCP:
KALA AZAR
• Vector control:
Selection of areas to be sprayed: all villages
within a PHC which reported Kala azar cases in
the past 5 years; all villages which reported
cases during the year of spray
Dosage: 1g/m2
of the wall surface; upto 6 feet
height
Cattle sheds and kala azar positive and
GUIDELINES UNDER NVBDCP:
KALA AZAR
Kala azar – Patient Coding Scheme
• The patient and his relatives are counseled
properly at the time of registration at the
health institution (CHC/PHC/district hospital)
about the importance of full treatment
• The coding would be arranged in the order of
Country Code cum State Code- District Code-
PHC Code, Sub-Centre / NGO Code- Patient
Code.
• As per the patient coding scheme, each Kala-
azar case will have the country code IND along
with the state code and have a 10 digit
numerical code. (IND2-01-01-01-001...... IND2-
01-01-01-999).
• No two patients will have the same 10 digit
numerical code during a period of 5 years /
Kala-azar Elimination Program period.
Kala azar – Patient Coding Scheme
Example of Patient Coding System
Dengue endemicity
• Disease is prevalent throughout India in most
of the metropolitan cities and towns
• Outbreaks have also been reported from rural
areas of Haryana, Maharashtra & Karnataka
Dengue endemicity
GUIDELINES UNDER NVBDCP:
DENGUE/DHF
• Early case reporting and management
Disease surveillance through grass root level
health workers, sentinel surveillance sites with
laboratory support
Case management including early referral of
cases
Epidemic preparedness and rapid response
No specific anti-viral drug; symptomatic Rx
• Integrated vector management:
Larval surveys – entomological surveillance
Source reduction
Personal protection
GUIDELINES UNDER NVBDCP:
DENGUE/DHF
• Larval surveys: containers in house-holds are
examined for presence of mosquito larvae and
pupae
• Four indices:
 House index: percentage of houses infected
= no. of houses infected with larvae/pupae x 100
no. of houses inspected
GUIDELINES UNDER NVBDCP:
DENGUE/DHF
• Larval surveys:
Container index: percentage of water holding
containers infected with larvae/pupae
= no. of positive containers x 100
no. of containers inspected
GUIDELINES UNDER NVBDCP:
DENGUE/DHF
• Larval surveys:
Breteau Index: no. of positive containers per
100 houses inspected
= no. of positive containers x 100
no. of houses inspected
GUIDELINES UNDER NVBDCP:
DENGUE/DHF
• Larval surveys:
Pupae Index: no. of pupae per 100 houses
= no. of pupae x 100
no. of houses inspected
GUIDELINES UNDER NVBDCP:
DENGUE/DHF
• An HI >5% &/or a BI >20 for any locality is an
indication that the locality is dengue sensitive
and therefore adequate preventive measures
should be taken
GUIDELINES UNDER NVBDCP:
DENGUE/DHF
• Adult surveys:
Landing/biting collection: presence of aedes
aegypti mosquito can be reliable indicator of
clear proximity to hidden larvae habitats
Laborious
Expressed in terms of landing/biting counts
per man hour
GUIDELINES UNDER NVBDCP:
DENGUE/DHF
• Adult surveys:
Resting collection: mosquitoes typically rest
indoors, especially in bedrooms and mostly in
dark places, such as cloth closets and other
sheltered sites
Mosquito searched with the aid of flashlight
Recorded as number of adults per house per
man hour of human efforts
GUIDELINES UNDER NVBDCP:
DENGUE/DHF
• Adult surveys:
Oviposition traps: Ovitraps are devices used
to detect presence of Aedes aegypti where
population density is low (BI < 5) (urban areas)
Used to evaluate impact of adulticidal space
spraying on female adult mosquito population
GUIDELINES UNDER NVBDCP:
DENGUE/DHF
• Following points were emphasized in the
strategic action plan:
Suspected cases should be referred at the
earliest for diagnosis and its proper
management
Strengthening through 110 Sentinel
Surveillance Hospitals (SSHs) and 13 Apex
Research Laboratories (ARLs)
GUIDELINES UNDER NVBDCP:
DENGUE/DHF
• Following points were emphasized in the
strategic action plan (contd.):
Diagnostic kits are supplied by NIV (Pune), for
which the cost is borne by NVBDCP
Monitoring of larval density of Aedes
mosquitoes in urban and rural areas regularly
GUIDELINES UNDER NVBDCP:
DENGUE/DHF
• Following points were emphasized in the
strategic action plan (contd.):
Involvement of NHM institutions namely Rogi
Kalyan Samiti for facilitating emergency cases
in referral and transportation
Involvement of VHSC for improvement in
sanitation and reduction in breeding sites
ASHA should be involved in educating the
community to avoid the stagnation of stored
water kept in and around houses
GUIDELINES UNDER NVBDCP:
DENGUE/DHF
• Legislative measures
Model civic by-laws: fine/punishment is
imparted, if breeding is detected.
Strictly imposed by Mumbai, Navi Mumbai,
Chandigarh and Delhi Municipal Corporations.
Building construction regulation act: for
overhead/underground tanks, etc.
In Mumbai, builders deposit a fee for
controlling mosquitogenic conditions at site
GUIDELINES UNDER NVBDCP:
DENGUE/DHF
• Legislative measures
Environmental Health Act: by-laws for proper
disposal/storage of junk, discarded tins, old
tyres and other debris
Health Impact Assessments: prior to any
development projects/major constructions
GUIDELINES UNDER NVBDCP:
DENGUE/DHF
CHIKUNGUNYA
• No specific anti-viral drug; symptomatic Rx
• Strategies for prevention and control are the
same as for dengue
Japanese encephalitis endemicity
JE - Extent of problem
• JE viral activity has been widespread in India.
• The first evidence of presence of JE virus dates
back to 1952.
• First case was reported in 1955
• During recent past (1998-2004), 15 states and
Union Territories have reported JE incidence
GUIDELINES UNDER NVBDCP: JE
• Early diagnosis and case management
Strengthening of referral services: available
at district/sub-district levels
Proper case management:
No specific anti-viral drug for JE and cases are
managed symptomatically
Improved care by medical and para-medical
health care providers, improved lab services
for diagnosis, availability of drugs
• Proper case management (contd.):
Management of sequel: rehab at district
Epidemic preparedness and rapid response:
team constituted in all JE endemic districts
• Vaccination:
Vaccination of children between 1-15 yrs age:
Initiated since 2006 with single dose live
attenuated SA-14-14-2 vaccine under UIP in a
phased manner
GUIDELINES UNDER NVBDCP: JE
• Integrated vector Management
Fogging with Malathion for outdoor is
recommended during outbreaks for
immediate killing of infected mosquitoes
Anti- larval operations
Personal protective measures for using
insecticides treated bed nets and curtains,
wearing full sleeve clothes during evening
hours etc.
Biological control using larvivorous fishes
GUIDELINES UNDER NVBDCP: JE
• Supportive interventions:
Training and capacity building
Through training of clinicians and nurses in
case management and laboratory technicians
and laboratory in charge/microbiologists in all
sentinel laboratories in diagnosis by MAC
ELISA method in a phased manner.
GUIDELINES UNDER NVBDCP: JE
• Supportive interventions:
Behaviour Change Communication
Early case reporting and early referral of
patients
Increasing awareness of clinical signs
Personal protection including segregation of
pigs away from human population
Mosquito proofing of pigsties
GUIDELINES UNDER NVBDCP: JE
• Supportive interventions:
• Supervision and monitoring
Periodic reviews/reports and field visits for
proper monitoring for JE
GUIDELINES UNDER NVBDCP: JE
Incentives to ASHAs under NVBDCP
S.No Activities Incentive Remarks
1 Preparation of slides Rs.5/- per slide Irrespective of RDT based
or slide based
confirmation
2. Taking slides to PHC
laboratories, getting reports and
providing complete treatment to
malaria positive case
Rs.5O/- per positive
case for complete
Treatment
This incentive is to
facilitate the
transportation cost
3.
RDT testing and complete
treatment of Pf malaria cases
Rs.20/-per positive
Pf malaria case for
complete treatment
In remote and
inaccessible areas, for
complete treatment of
Pf malaria cases
Incentives for filaria
• Under the ELF program, MDA is administered
by health workers (male/female) and
volunteers
• ASHAs could also be involved by local health
authorities
• Payment of Rs.100/- to each
volunteer/worker/ASHA for drug distribution
to 250 persons in approx 50 houses
Incentives for Kala azar
• Identification of case – Rs. 50/- per case
• For follow up and ensuring complete
treatment – Rs. 150/- per case
• From funds allocated for operational costs
under cash grant of NVBDCP (kala azar) funds
Dengue/Chikungunya/JE
• The untied funds available with the
subcentres for referral to district hospitals can
be utilized for transportation of the severe
cases to the identified referral centres
Public Private Partnership
• Categories: NVBDCP initiatives for PPP are
classified into 2 categories
Category 1: with local self government
(panchayat) or panchayat level CBO
(population coverage – minimum 5000
population)
Category 2: block level NGO/FBO (population
coverage – minimum 100000 population)
Public Private Partnership
• Schemes:
• Provision of EDPT
Scheme 1: Provision of outreach services –
Fever Treatment Depot & Drug Distribution
Centre
Scheme 2: Provision of microscopy and
treatment services
Scheme 3: Hospital based treatment and care
of severe complicated malaria cases
Public Private Partnership
• Integrated Vector Control
Scheme 4: Promotion of ITMN, insecticide
treatment of community owned bed nets and
distribution of ITMN in selected areas
Scheme 5: Promotion of larvivorous fish
Scheme 6: Indoor Residual Spray
THANK YOU

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NVBDCP National Vector Borne Disease Control Program

  • 1. Dr. Mihir Rupani Assistant Professor Department of Community Medicine Government Medical College, Bhavnagar NATIONAL VECTOR BORNE DISEASE CONTROL PROGRAM: Guidelines for program implementation
  • 2.
  • 3. INTRODUCTION • Vector borne diseases: Pose an immense public health concern Major impediments in the path of socio- economic development
  • 4. Historical perspective • National Malaria Eradication Programme (NMEP) which was being implemented in the country since 1958, was reviewed in 1977 and revised guidelines for Modified Plan of Operation (MPO) were issused to all States & UTs
  • 5. • Due to various outbreaks in the country malaria situation was reviewed in 1994 by an Expert Committee. • In pursuance of the Expert Committee's recommendations, the Directorate of NMEP brought out operational manual for Malaria Action Programme (MAP) in 1995 Historical perspective
  • 6. • The Directorate of NMEP was renamed as Directorate of National Anti Malaria Programme (NAMP) in March, 1999. • Directorate of NAMP was dealing with three centrally sponsored schemes namely Malaria, Filaria and Kala-azar control and in addition, was looking after the prevention and control of Dengue and Japanese Encephalitis. Historical perspective
  • 7. • With a view to converge Dengue/Dengue Haemorrhagic feverand Japanese Encephalitis with the three on-going centrally sponsored schemes [National Anti-Malaria Programme (NAMP), National Filaria Control Programme (NFCP) and Kala-azar Control Programme], the integrated scheme was renamed as National Vector Borne Disease Control Programme (NVBDCP) from 2nd December, 2003. Historical perspective
  • 8. • In 2006, Chikungunya re-emerged in the country and this was also brought within the purview of Directorate of NVBDCP. Historical perspective
  • 9. NVBDCP – National Vector Borne Disease Control Program • Earlier the Vector Borne Diseases were managed under separate National Health Programs • NVBDCP is an umbrella program for prevention and control of 6 vector borne diseases namely: Malaria Dengue Chikungunya Japanese Encephalitis Kala-Azar Filaria (Lymphatic Filariasis)
  • 10. • It is an integral component of NHM and is implemented under the overall umbrella of NHM • The Programme is monitored at the National level through the mechanisms established under NHM. NVBDCP
  • 11. NVBDCP • The Directorate is responsible for framing technical guidelines & policies as to guide the states for implementation of Program strategies. • Responsible for budgeting and planning the logistics pertaining to central sector. • Monitoring of implementation through regular reports and returns of MIS is done.
  • 12. NVBDCP • The Directorate carries out evaluation of Program implementation from time to time. • The resource gap is also assessed as to provide an equitable support based on the magnitude of the problem. • Under the Union Ministry of H&FW, GoI, 17 ROH & FW are functioning.
  • 13. NVBDCP • Every state has state vector borne diseases control component under the Directorate of Health Services • There is a system of coordination between the state and centre for effective implementation and monitoring of Program.
  • 14. NVBDCP • At the district level, District Malaria Offices have been established under District Chief Medical and Health Offices by the states. • Key unit for planning and monitoring of Program under a technical officer. • At present, 565 District Malaria Units are functioning.
  • 15. Program objectives and strategies • NVBDCP strategies comprise Early diagnosis, prompt and complete treatment Integrated vector management including promotion of personal protective measures and biological measures BCC, capacity building through integrated training at all tiers of health care delivery system Monitoring and evaluation
  • 16. • Partnerships Other national health programs Non-health sector departments Civil society organizations (NGOs, CBOs, self- help groups, panchayati raj institutions) Corporate sectors Medical academia and professional bodies Program objectives and strategies
  • 17. • LLINs Having efficacy of 3-5 years have been introduced Program objectives and strategies
  • 18. • Improve efficiency and quality of services at primary, secondary and tertiary levels • Primary level ASHA under NHM, Anganwadi workers of ICDS and Community Volunteers of NGOs would be trained to serve Fever Treatment Depots (FTDs) PHCs, CHCs: equipped to manage PF malaria Lab surveillance enhanced Program objectives and strategies
  • 19. • Improve efficiency and quality of services at primary, secondary and tertiary levels • Secondary level Training of Medical Officers, Lab Technicians and Community Volunteers of public and private sector District level hospitals: equipped with ventilators and lab services Medical audit Program objectives and strategies
  • 20. • Improve efficiency and quality of services at primary, secondary and tertiary levels • Tertiary level Medical college hospital: manage all referrals Undertake therapeutic efficacy studies of combi-pack and effectiveness of rapid diagnostic kits Rapid diagnosis for management of severe malaria cases Program objectives and strategies
  • 21. • Environmental Management Proper drainage and sanitation Program objectives and strategies
  • 22. • Government of India provides technical support as well as logistics • State governments ensure program implementation • The centre and the states monitor the program closely and high-risk areas are identified for focused attention Program objectives and strategies
  • 23. Malaria – problematic states • Chattisgarh, Jharkhand, Maharashtra, West Bengal and Orissa – have registered maximum malaria cases in India (since 2007) • Out of them, Orissa and Maharashtra have contributed to most of the deaths due to malaria • Other high malaria burden states – MP, UP, Gujarat, Rajasthan, Karnataka
  • 24. MALARIA • The program aims to maintain Annual Blood Examination Rate (ABER) of > 10% by active and passive surveillance and bring down Annual Parasite Incidence (API) to 1.3 or less by 2012 • 25% reduction in morbidity and mortality by 2010 and 50% by 2012 (baseline year 2006)
  • 25. MALARIA • To strengthen malaria control, GoI is providing cash assistance to states for engaging multi- purpose workers (MPWs) on contractual basis in about 200 identified high endemic districts during the XI Five Year Plan
  • 26. MALARIA • Provision has been made under external assistance for positioning Malaria Technical Supervisors (MTS) in high endemic areas to strengthen supportive supervision and micro- level monitoring • Each MTS to cover a population of 2.5 lacs in selected areas of the high endemic districts
  • 27. MALARIA • Under NVBDCP, all fever cases are required to be immediately examined • Positive cases are provided prompt and complete treatment • Incentives have been considered for ASHAs for performing Rapid Diagnostic Tests (RDTs), preparation of slides and administering complete treatment
  • 28. MALARIA • ASHA can also arrange to transport severe malaria cases to the referral centers with the expenditure borne out of funds from untied grants of NHM • Funds available with the Village Health and Sanitation Committee (VHSC) can also be utilized (this grant may also be utilized for source reduction of mosquito breeding sites)
  • 29. GUIDELINES UNDER NVBDCP: MALARIA • Surveillance and case management Conventional diagnostic method through microscopy remains the gold standard However, rapid diagnostic kits (Pf kits) are provided for quick treatment in difficult and inaccessible areas with P. falciparum predominance
  • 30. • Integrated Vector Control Management IRS: 2 rounds of DDT/synthetic pyrethroid or 3 rounds of malathion based on the insecticide resistance studies and epidemiological information. IRS to be done in all areas with API>2 or above. Priority of spray to be given to high risk areas with API or SPR 5 and above GUIDELINES UNDER NVBDCP: MALARIA
  • 31. • Integrated Vector Control Management (contd.) Use of ITMN Reduction of breeding sites: use of larvivorous fish – Gambusia and Poecilia (Guppy) GUIDELINES UNDER NVBDCP: MALARIA
  • 32. • Epidemic preparedness and Response (EPR) Objectives are early identification and control of epidemic Early warning signals which include epidemiological & entomological parameters , climatic factors (rain fall, temperature and humidity), operational factors (inadequacy and lack of trained manpower) are monitored GUIDELINES UNDER NVBDCP: MALARIA
  • 33. • Epidemic preparedness and Response (EPR) Proper linkage with Integrated Diseases Surveillance Programme (IDSP) at district level for obtaining early warning signals on regular basis District should have rapid response team consisting of epidemiologist, entomologist, lab technician, Medical Officer, health workers, supervisors, community volunteers GUIDELINES UNDER NVBDCP: MALARIA
  • 34. • Supportive interventions Training and capacity building Integrated training programme have been designed for different categories of health care functionaries GUIDELINES UNDER NVBDCP: MALARIA
  • 35. • Supportive interventions Behaviour Change Communication Empowers people to take rational and informed decisions through appropriate knowledge Inculcates necessary skills and optimism Stimulates pertinent action Reinforces the same through peers and influencers. GUIDELINES UNDER NVBDCP: MALARIA
  • 36. • Supportive interventions Inter-sectoral Collaboration Anti Malaria Month is being observed with enhanced level of campaigning just before the peak transmission season GUIDELINES UNDER NVBDCP: MALARIA
  • 37. • Innovations/modifications have been proposed to be intensified during XI Five Year Plan For focused interventions, 206 districts have been identified as high malaria endemic Of which, 100 districts – high API and Pf rate>30% Further out of these 100, 61 districts identified as very high malaria endemic districts GUIDELINES UNDER NVBDCP: MALARIA
  • 38. • Innovations/modifications have been proposed to be intensified during XI Five Year Plan Geographical Information System (GIS) mapping for focused intervention in high risk prioritized districts GUIDELINES UNDER NVBDCP: MALARIA
  • 39. • Innovations/modifications have been proposed to be intensified during XI Five Year Plan Linkage with NHM and use of NHM Institutions for prevention and control of VBDs Up-scaling use of bed nets /Long Lasting Insecticide Treated Nets (LLINs) GUIDELINES UNDER NVBDCP: MALARIA
  • 40. • Innovations/modifications have been proposed to be intensified during XI Five Year Plan Early diagnosis and treatment by Strengthening of human resource Scaling up of Rapid Diagnostic Kit (RDK) Scaling up of Artemisinin-based Combination Therapy (ACT) GUIDELINES UNDER NVBDCP: MALARIA
  • 41. • Monitoring of drug resistance and insecticide resistance: 15 studies are conducted in a year through Pf monitoring teams through ROH&FWs and National Institute of Malaria Research (NIMR) at different places Based on their report, resistance areas are identified and their drug policy changed GUIDELINES UNDER NVBDCP: MALARIA
  • 42. FILARIA (endemicity) • Indigenous cases have been reported from about 250 districts in 20 states/Union Territories.
  • 44. FILARIA (endemicity) • Indigenous filaria cases have been recorded from Andhra Pradesh, Assam, Bihar, Chhattisgarh, Goa, Jharkhand, Karnataka, Gujarat, Kerala, Madhya Pradesh, Maharashtra, Orissa, Tamil Nadu, Uttar Pradesh, West Bengal, Pondicherry, Andaman & Nicobar Islands, Daman & Diu, Dadra & Nagar Haveli and Lakshadweep.
  • 45. FILARIA (endemicity) • States free from indigenously acquired filarial infection: North-Western States/UTs namely Jammu & Kashmir, Himachal Pradesh, Punjab, Haryana, Chandigarh, Rajasthan, Delhi and Uttaranchal and North-Eastern States namely Sikkim, Arunachal Pradesh, Nagaland, Meghalaya, Mizoram, Manipur and Tripura
  • 46. FILARIA • Population living in endemic countries is now covered with annual MDA with DEC + Albendazole, with aim of elimination of Filaria by 2015 • Patients suffering from hydrocele are motivated for surgery • ASHA and other volunteers, after due training, would be involved in MDA by the local health authority
  • 47. • ELF by 2015: LF ceases to be a public health problem i.e. the number of microfilaria carriers is less than one per cent in endemic population Children born after initiation of ELF are free from circulating antigenaemia. Absence of antigenaemia among children is considered as evidence for absence of transmission and new infection. FILARIA
  • 48. GUIDELINES UNDER NVBDCP: FILARIA • National Filaria Control Program is being implemented in the country through 206 filaria control units, 199 filaria clinics and 27 survey units • Strategies under NFCP: Detection and treatment to the patients with anti-filaria drug Anti-larval work in urban areas covered under NFCP
  • 49. • Filaria has been targeted for elimination globally by 2020 • National Health Policy (2002) aims to eliminate lymphatic filariasis (ELF) by 2015 • MDA being implemented since 2004 in 250 districts in 15 states and 5 UTs MDA to be undertaken by District Malaria Officer or District Vector Borne Disease Control Officer with staff and officials of NFCP GUIDELINES UNDER NVBDCP: FILARIA
  • 50. Major activities under ELF • Sensitization and training of district and state level officers • Media sensitization and District Co-ordination Committee meeting under the chairmanship of district collector • Microfilaria survey by trained technicians (especially for collection of blood in the night and its examination) before MDA in sentinel and random sites in each district
  • 51. • Identification of manifestations (lymphedema or hydrocele), line-listing of cases and updating every year with addition or deletion on yearly basis to provide services for morbidity management • Collection, compilation and analysis of data and feedback to state as well as centre • Assessment through involvement of medical college faculty, ROH&FW and ICMR institutions Major activities under ELF
  • 52. • Hydrocele operations for relief of the patients • Training on home based care for morbidity management • Vector control: one or two rounds of IRS with DDT (1g/m2 ) in endemic areas • Anti-larval measures: temphos in water tanks every week and application of Mineral Larvicidal Oils (MLO) on water surface • Biological control; Environmental engineering Major activities under ELF
  • 54. Kala Azar endemicity • Endemic in eastern States of India namely Bihar, Jharkhand, Uttar Pradesh and West Bengal • 48 districts endemic; sporadic cases reported from a few other districts • Estimated 129 million population at risk in 4 states • Mostly poor socio-economic groups of population primarily living in rural areas are affected
  • 55. KALA AZAR • Annual incidence of Kala Azar will be reduced to less than 1 per 10,000 population at sub- district level with the aim of eliminating Kala Azar by 2010 • Kala Azar Technical Supervisors (KTS) are provided in affected districts to strengthen early detection, complete treatment and prevention and control including residual spray (supported under World Bank assisted project)
  • 56. • It is proposed that ASHA workers will be involved in identification of Kala azar cases and ensuring their complete treatment KALA AZAR
  • 57. GUIDELINES UNDER NVBDCP: KALA AZAR • Main strategic components for elimination: Case detection and treatment: done through the existing Primary health care system supplemented by periodic annual active searches (Kala azar fortnight) Interruption of transmission through vector control: undertaking 2 rounds of DDT spray annually in PHC areas reporting kala azar incidence under direct supervision and monitoring by NHM institutions
  • 58. • First round of IRS: february-march • Second round: may-june Just before the onset of monsoon as some parts of Bihar become inaccessible in monsoon • IRS (with DDT 50%) is supplemented with efforts to improve sanitation • In addition, environmental measures and personal protection from sandfly bites are encouraged GUIDELINES UNDER NVBDCP: KALA AZAR
  • 59. • IEC & inter-sectoral convergence • Diagnosis: Suspected cases as per the standard case definition are referred for clinical case examination and tested with rapid dipstick test rK39 GUIDELINES UNDER NVBDCP: KALA AZAR
  • 60. • Treatment: as per the drug policy of GoI, Sodium Stibo Gluconate (SSG) is the first line treatment of Kala azar The oral drug, Miltefosine has been introduced on a pilot basis in 6 districts of Bihar and 2 districts each of Jharkhand and West Bengal Paramomycin has also been approved GUIDELINES UNDER NVBDCP: KALA AZAR
  • 61. • Vector control: Selection of areas to be sprayed: all villages within a PHC which reported Kala azar cases in the past 5 years; all villages which reported cases during the year of spray Dosage: 1g/m2 of the wall surface; upto 6 feet height Cattle sheds and kala azar positive and GUIDELINES UNDER NVBDCP: KALA AZAR
  • 62. Kala azar – Patient Coding Scheme • The patient and his relatives are counseled properly at the time of registration at the health institution (CHC/PHC/district hospital) about the importance of full treatment • The coding would be arranged in the order of Country Code cum State Code- District Code- PHC Code, Sub-Centre / NGO Code- Patient Code.
  • 63. • As per the patient coding scheme, each Kala- azar case will have the country code IND along with the state code and have a 10 digit numerical code. (IND2-01-01-01-001...... IND2- 01-01-01-999). • No two patients will have the same 10 digit numerical code during a period of 5 years / Kala-azar Elimination Program period. Kala azar – Patient Coding Scheme
  • 64. Example of Patient Coding System
  • 65.
  • 66.
  • 68. • Disease is prevalent throughout India in most of the metropolitan cities and towns • Outbreaks have also been reported from rural areas of Haryana, Maharashtra & Karnataka Dengue endemicity
  • 69. GUIDELINES UNDER NVBDCP: DENGUE/DHF • Early case reporting and management Disease surveillance through grass root level health workers, sentinel surveillance sites with laboratory support Case management including early referral of cases Epidemic preparedness and rapid response No specific anti-viral drug; symptomatic Rx
  • 70. • Integrated vector management: Larval surveys – entomological surveillance Source reduction Personal protection GUIDELINES UNDER NVBDCP: DENGUE/DHF
  • 71. • Larval surveys: containers in house-holds are examined for presence of mosquito larvae and pupae • Four indices:  House index: percentage of houses infected = no. of houses infected with larvae/pupae x 100 no. of houses inspected GUIDELINES UNDER NVBDCP: DENGUE/DHF
  • 72. • Larval surveys: Container index: percentage of water holding containers infected with larvae/pupae = no. of positive containers x 100 no. of containers inspected GUIDELINES UNDER NVBDCP: DENGUE/DHF
  • 73. • Larval surveys: Breteau Index: no. of positive containers per 100 houses inspected = no. of positive containers x 100 no. of houses inspected GUIDELINES UNDER NVBDCP: DENGUE/DHF
  • 74. • Larval surveys: Pupae Index: no. of pupae per 100 houses = no. of pupae x 100 no. of houses inspected GUIDELINES UNDER NVBDCP: DENGUE/DHF
  • 75. • An HI >5% &/or a BI >20 for any locality is an indication that the locality is dengue sensitive and therefore adequate preventive measures should be taken GUIDELINES UNDER NVBDCP: DENGUE/DHF
  • 76. • Adult surveys: Landing/biting collection: presence of aedes aegypti mosquito can be reliable indicator of clear proximity to hidden larvae habitats Laborious Expressed in terms of landing/biting counts per man hour GUIDELINES UNDER NVBDCP: DENGUE/DHF
  • 77. • Adult surveys: Resting collection: mosquitoes typically rest indoors, especially in bedrooms and mostly in dark places, such as cloth closets and other sheltered sites Mosquito searched with the aid of flashlight Recorded as number of adults per house per man hour of human efforts GUIDELINES UNDER NVBDCP: DENGUE/DHF
  • 78. • Adult surveys: Oviposition traps: Ovitraps are devices used to detect presence of Aedes aegypti where population density is low (BI < 5) (urban areas) Used to evaluate impact of adulticidal space spraying on female adult mosquito population GUIDELINES UNDER NVBDCP: DENGUE/DHF
  • 79. • Following points were emphasized in the strategic action plan: Suspected cases should be referred at the earliest for diagnosis and its proper management Strengthening through 110 Sentinel Surveillance Hospitals (SSHs) and 13 Apex Research Laboratories (ARLs) GUIDELINES UNDER NVBDCP: DENGUE/DHF
  • 80. • Following points were emphasized in the strategic action plan (contd.): Diagnostic kits are supplied by NIV (Pune), for which the cost is borne by NVBDCP Monitoring of larval density of Aedes mosquitoes in urban and rural areas regularly GUIDELINES UNDER NVBDCP: DENGUE/DHF
  • 81. • Following points were emphasized in the strategic action plan (contd.): Involvement of NHM institutions namely Rogi Kalyan Samiti for facilitating emergency cases in referral and transportation Involvement of VHSC for improvement in sanitation and reduction in breeding sites ASHA should be involved in educating the community to avoid the stagnation of stored water kept in and around houses GUIDELINES UNDER NVBDCP: DENGUE/DHF
  • 82. • Legislative measures Model civic by-laws: fine/punishment is imparted, if breeding is detected. Strictly imposed by Mumbai, Navi Mumbai, Chandigarh and Delhi Municipal Corporations. Building construction regulation act: for overhead/underground tanks, etc. In Mumbai, builders deposit a fee for controlling mosquitogenic conditions at site GUIDELINES UNDER NVBDCP: DENGUE/DHF
  • 83. • Legislative measures Environmental Health Act: by-laws for proper disposal/storage of junk, discarded tins, old tyres and other debris Health Impact Assessments: prior to any development projects/major constructions GUIDELINES UNDER NVBDCP: DENGUE/DHF
  • 84. CHIKUNGUNYA • No specific anti-viral drug; symptomatic Rx • Strategies for prevention and control are the same as for dengue
  • 86. JE - Extent of problem • JE viral activity has been widespread in India. • The first evidence of presence of JE virus dates back to 1952. • First case was reported in 1955 • During recent past (1998-2004), 15 states and Union Territories have reported JE incidence
  • 87. GUIDELINES UNDER NVBDCP: JE • Early diagnosis and case management Strengthening of referral services: available at district/sub-district levels Proper case management: No specific anti-viral drug for JE and cases are managed symptomatically Improved care by medical and para-medical health care providers, improved lab services for diagnosis, availability of drugs
  • 88. • Proper case management (contd.): Management of sequel: rehab at district Epidemic preparedness and rapid response: team constituted in all JE endemic districts • Vaccination: Vaccination of children between 1-15 yrs age: Initiated since 2006 with single dose live attenuated SA-14-14-2 vaccine under UIP in a phased manner GUIDELINES UNDER NVBDCP: JE
  • 89. • Integrated vector Management Fogging with Malathion for outdoor is recommended during outbreaks for immediate killing of infected mosquitoes Anti- larval operations Personal protective measures for using insecticides treated bed nets and curtains, wearing full sleeve clothes during evening hours etc. Biological control using larvivorous fishes GUIDELINES UNDER NVBDCP: JE
  • 90. • Supportive interventions: Training and capacity building Through training of clinicians and nurses in case management and laboratory technicians and laboratory in charge/microbiologists in all sentinel laboratories in diagnosis by MAC ELISA method in a phased manner. GUIDELINES UNDER NVBDCP: JE
  • 91. • Supportive interventions: Behaviour Change Communication Early case reporting and early referral of patients Increasing awareness of clinical signs Personal protection including segregation of pigs away from human population Mosquito proofing of pigsties GUIDELINES UNDER NVBDCP: JE
  • 92. • Supportive interventions: • Supervision and monitoring Periodic reviews/reports and field visits for proper monitoring for JE GUIDELINES UNDER NVBDCP: JE
  • 93. Incentives to ASHAs under NVBDCP
  • 94. S.No Activities Incentive Remarks 1 Preparation of slides Rs.5/- per slide Irrespective of RDT based or slide based confirmation 2. Taking slides to PHC laboratories, getting reports and providing complete treatment to malaria positive case Rs.5O/- per positive case for complete Treatment This incentive is to facilitate the transportation cost 3. RDT testing and complete treatment of Pf malaria cases Rs.20/-per positive Pf malaria case for complete treatment In remote and inaccessible areas, for complete treatment of Pf malaria cases
  • 95. Incentives for filaria • Under the ELF program, MDA is administered by health workers (male/female) and volunteers • ASHAs could also be involved by local health authorities • Payment of Rs.100/- to each volunteer/worker/ASHA for drug distribution to 250 persons in approx 50 houses
  • 96. Incentives for Kala azar • Identification of case – Rs. 50/- per case • For follow up and ensuring complete treatment – Rs. 150/- per case • From funds allocated for operational costs under cash grant of NVBDCP (kala azar) funds
  • 97. Dengue/Chikungunya/JE • The untied funds available with the subcentres for referral to district hospitals can be utilized for transportation of the severe cases to the identified referral centres
  • 98. Public Private Partnership • Categories: NVBDCP initiatives for PPP are classified into 2 categories Category 1: with local self government (panchayat) or panchayat level CBO (population coverage – minimum 5000 population) Category 2: block level NGO/FBO (population coverage – minimum 100000 population)
  • 99. Public Private Partnership • Schemes: • Provision of EDPT Scheme 1: Provision of outreach services – Fever Treatment Depot & Drug Distribution Centre Scheme 2: Provision of microscopy and treatment services Scheme 3: Hospital based treatment and care of severe complicated malaria cases
  • 100. Public Private Partnership • Integrated Vector Control Scheme 4: Promotion of ITMN, insecticide treatment of community owned bed nets and distribution of ITMN in selected areas Scheme 5: Promotion of larvivorous fish Scheme 6: Indoor Residual Spray

Notas do Editor

  1. MIS – management information system
  2. These offices are located at different state headquarters.
  3. Objective of the partnership is to provide uniformity in diagnosis, treatment and monitoring through a wider base in the country to maximize access to treatment and improve acceptability of appropriate and locally suitable vector control measures.
  4. Lab surveillance from private sector would be enhanced by coordination with private practitioner and private laboratories
  5. Medical audit to measure effectiveness of program
  6. with emphasis on malaria diagnosis, treatment and prevention and control activities including residual spray and bed-net impregnation, distribution and use
  7. Slide positivity rate – no. of blood smears found positive for malaria parasite / no. of blood smears examined x 100 Annual Blood examination rate – no. of blood smears examined during the year / population covered under surveillance x 100 API – confirmed cases of malaria during one year / population covered under surveillance x 100
  8. Although larvivorous fish have been used successfully in some parts of the country, it is important that their use is scaled-up substantially to achieve demonstrable positive impact. Individuals and communities can reduce mosquito breeding by the following activities:  o Remove discarded containers that might collect water. o Cover cisterns (water tanks) with lids or mosquito nets. o Clear away or remove vegetation and other matter from the banks of streams to make the flow of water smooth and reduce breeding. o Eliminate the pools of water caused by leaking taps, spillage of water around pipes and wells or poor drains by repairing. o Use larvivorous fish in permanent water bodies with potential breeding sites
  9. Malaria is one of the epidemic prone diseases, specially in relatively low endemic areas with unstable transmission dynamics.
  10. The integrated training guidelines aim to standardize the training contents for each category of the health care workers as well as non health care functionaries in order to improve the quality of training and to improve in delivery of services. For this purpose integrated course curriculum has been developed for all three categories. Besides, training of Private Medical Practitioners and other inter­ sectoral partners are also conducted to sensitize. them about the National Strategies for VBD control. Specialized trainings for entomologists and laboratory technicians are also conducted through some identified Apex Institute having expertise on the concerned field. The capacity building at state, district and PHC level need to be planned and continued to keep the well trained human resource available with the programme for programme implementation.
  11. June is observed as anti-malaria month, World Malaria Day – April 25
  12. Red zones are free from filaria
  13. NFCP launched in 1955, activities mainly in urban areas. Extended to rural areas since 1994.
  14. Eradicable diseases: Polio, Leprosy, Guinea Worm, Filariasis/Onchocerciasis, Measles and Chagas Disease. For individual case treatment: DEC 6 mg/kg b.w. orally daily for 12 days. Doxycycline for 14 days also effective. MDA: 1 tab albendazole 400mg &amp;gt; 2 yrs; DEC: 2-5 yrs-1 tab, 5-14 yrs- 2 tab, &amp;gt;14 yrs- 3 tab (300mg) Single dose of ivermectin has been found to be effective. National Filaria Day: 15th November
  15. Temphos dose: 1 ppm
  16. No case of Kala Azar in Gujarat since 2007
  17. Sandfly Phlebotomus argentipus The active case search will be carried out during one fortnight for which will be decided by each of the endemic states. The case search operation is a community based operation, to detect all suspected cases of kala-azar according to the case definition of kala-azar and PKDL. Community must therefore be aware of the purpose of house to house visits by workers and the workers who visit villages should be familiar with case definition, the reporting formats and the treatment schedules, etc. The fever cases detected during the Fortnight are to be treated with the appropriate regime of the prescribed drugs, sufficient quantities of which should be available at the PHC and district levels. Active case search is to be carried out in all villages of the endemic district where transmission of kala-azar is possible. Kala-azar case Definition Persons with fever of more than 15 days duration not responding to anti-malarials and antibiotics with splenomegaly is a suspected case of Kala-azar. PKDL Persons with depigmented patches on the body with sensation and with a history of kala-azar in the past is a suspected case of PKDL.
  18. Avoiding sleeping on the floor, using fine-mesh bed nets, clean shelters for animals, no cracks crevices, water well to be kept closed, not to sleep naked, application of home-made mustard oil lotion RK 39 rapid diagnostic kit and ELISA are better and fast
  19. 2nd line drug: Pentamidine isothionate. Amphotericin B is also used.
  20. In case of resistance to DDT, BHC is recommended. From the year 2003-04, 100% assistance is provided by the centre.
  21. Fogging by 95% or pure technical malathion (equipment is portable motorized knapsack blowers and cold aerosol generators) Pyrethrum spray: Indoor; 0.1 – 0.2 % @ 30-60 ml / 1000 cu. ft One liter of 2% pyrethrum extract is diluted by kerosene into 20 litres to make 0.1% pyrethrum formulation (equipment: flit pump or hand operated fogging machine fitted with microdischarge nozzle) In SMC, fogging is done by 0.1% formulation (2% extract) pyrethrum and IRS by 5 % alpha cypermethrin. Commercial formulation of 2% pyrethrum extract is diluted with kerosene in the ratio one part of 2% pyrethrum extract with 19 parts of kerosene (volume/volume). Thus, one litre of 2% pyrethrum extract is diluted by kerosene into 20 litres of 0.1% pyrethrum extract .ready-to-spray formulation.. One litre of .ready-to-spray formulation is sufficient to cover 20 households, each household having 100 cubic metres of indoor space.
  22. A person exposes his feet while using mechanical aspirator for collecting landing mosquitoes at each collection site. Usually between 6:00 PM to 6:00 AM.
  23. Oviposition traps are traps designed to attract and sample gravid female mosquitoes, either directly or via eggs deposited within the trap. Trap design varies depending on the mosquito species of interest. (D68) A black jar, containing water and with a hardboard paddle placed inside it, to provide an attractive oviposition site for container breeding mosquitoes. (D70) The Reiter gravid trap samples female Culex spp. mosquitoes looking to deposit eggs. It is selective for females which have taken at least one blood meal. (D68) Small ovitraps are used for sampling eggs of Aedes spp. mosquitoes. Larger ovitraps, usually with an attractant or infusion, are used for sampling eggs of Culex spp. mosquitoes. For sampling of gravid female mosquito population (gravid trap) or eggs to estimate gravid population size from number of egg rafts (ovitrap).  As only female mosquitoes which have fed at least once are attracted to these traps the individuals caught are more likely to be infected. (D70) There is a greater chance of collecting infected females when using gravid traps which retain the mosquitoes (compared to use of light traps), as only females which have already ingested at least one blood meal should be attracted to the trap. (D68) Gravid trap counts may have a higher correlation with disease transmission than other traps. (D68, D70) Useful for mosquito species which breed in containers (D70) &amp;quot;More sensitive and economical than larval or adult surveys of Aedes aegypti.“ Ovitraps which do not retain the ovipositing females only sample the eggs;  These traps can be used to estimate the ovipositing adult female mosquito population but not to give information regarding the rate of infection with arboviruses.
  24. Health education: special campaigns may be carried out through mass media including newspapers, TV, radio, local cable networks, outdoor like miking. At household level: use of pyrethroid-based aerosols like ‘All OUT’ or ‘HIT’; keeping room closed for 15-20 minutes; during early morning or late afternoon. Personal protective measures – full sleeved clothes, ITMN. Using mosquito repellents like odomos, burning neem leaves, coconut shells. Using tight-fitting screens/wire mesh on doors and windows. Covering all water containers in the house. Introducing larvivorous fishes (eg. Gambusia, poecilia – guppy). At community level: applying temphos (1 ppm) on weekly basis in coordination with health authorities. At institutional level: weekly checking for aedes larval habitats in overhead tanks, ground water storage, introducing larvivorous fishes, carrying out indoor spraying with 2% pyrethrum, notification of fever cases.
  25. 179 districts in 9 states are endemic to JE
  26. No case reported from Gujarat
  27. Flavivirus; Culex Vishnii, Culex tritaeniorhyncus, Culex genidus
  28. Vaccination is however, not recommended as an outbreak control measure
  29. No role of IRS
  30. MAC – IgM Antibody Capture ELISA
  31. RDT – rapid diagnostic test