Nvbdcp PSM
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NVBDCP PSM National Vector Borne Disease Control Programme India community medicine
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NVBDCP diseases objectives strategies
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NVBDCP PSM notes Japanese encephalitis dengue chikungunya elimination targets India 2025
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NVBDCP diseases objectives strategies elimination targets
Here is a comprehensive PSM (Preventive & Social Medicine) overview of NVBDCP — the National Vector Borne Disease Control Programme:
NVBDCP — National Vector Borne Disease Control Programme
Background
| Feature | Detail |
|---|---|
| Full name | National Vector Borne Disease Control Programme |
| Launched | 2003–04 |
| Type | Centrally Sponsored Scheme (Umbrella Programme) |
| Nodal agency | Directorate of NVBDCP, under Directorate General of Health Services (DGHS) |
| Ministry | Ministry of Health & Family Welfare |
| Framework | Subsumed under National Health Mission (NHM) |
Diseases Covered (Six)
| Disease | Vector | Pathogen |
|---|---|---|
| Malaria | Anopheles mosquito | Plasmodium vivax, P. falciparum, P. malariae, P. ovale |
| Dengue / DHF | Aedes aegypti | Dengue virus (Flavivirus) |
| Chikungunya | Aedes aegypti / A. albopictus | Chikungunya virus (Togavirus) |
| Japanese Encephalitis (JE) | Culex mosquito | Arbovirus Group B (Flavivirus) |
| Kala-azar (Visceral Leishmaniasis) | Female Phlebotomus sandfly | Leishmania donovani |
| Lymphatic Filariasis | Culex / Anopheles / Mansonia / Aedes | Wuchereria bancrofti / Brugia malayi |
Mission Statement
Integrated accelerated action toward:
- Reducing mortality from Malaria, Dengue, and JE by half
- Elimination of Kala-azar (originally 2010 → revised to 2015 → now phased district-wise)
- Elimination of Lymphatic Filariasis (target: 2015 → revised 2021 → ongoing)
- Elimination of Malaria by 2027 (National Strategic Plan; 3 years ahead of global 2030 deadline)
Sub-Programmes Under NVBDCP
1. Kala-azar Control Programme
- Endemic in: Bihar, Jharkhand, West Bengal, parts of UP (48 districts)
- Caused by: intracellular protozoan Leishmania donovani
- Strategies:
- Enhanced case detection (fever >15 days not responding to antiviral treatment in endemic areas)
- rK39 rapid diagnostic test
- Complete treatment with Liposomal Amphotericin B (first-line)
- Indoor residual spraying with DDT/synthetic pyrethroids
- Sandfly control (environmental management)
2. National Filaria Control Programme
- Prevalent in 18 states/UTs; 250 endemic districts
- Bancroftian filariasis: widely distributed; Brugian filariasis (B. malayi) restricted to 6 states (UP, Bihar, AP, Odisha, TN, Kerala, Gujarat)
- Strategies:
- Annual Mass Drug Administration (MDA) with single dose of DEC (Diethylcarbamazine) ± Albendazole (excluding: children <2 years, pregnant women, seriously ill)
- Anti-larval measures at weekly intervals
- Source reduction (filling ditches, pits, deweeding)
- Biological control — larvivorous fish
- Detection and treatment of microfilaria carriers via Filaria Clinics
3. Japanese Encephalitis Control Programme
- Reported from 26 states/UTs since 1978; 15 states report regularly
- Zoonotic disease; reservoir: pigs and wading birds
- Transmitted by Culex tritaeniorhynchus
- Strategies:
- JE vaccination (SA-14-14-2 live attenuated vaccine)
- Early diagnosis and management
- Vector control (anti-larval, source reduction)
- Swine vaccination in endemic areas
4. Malaria Control (National Strategic Plan for Malaria Elimination)
- At independence: 75 million cases/year, 0.8 million deaths/year
- Classification of endemic areas:
- API >2 → High-risk: spray all areas, active + passive surveillance, treatment, entomological assessment
- API <2 → Low-risk: focal spraying, more vigorous surveillance, follow-up
- Three-pronged vector control strategy:
- Indoor Residual Spray (IRS) — DDT / Malathion / synthetic pyrethroids
- Insecticide-Treated Nets (ITN) / Long-Lasting Insecticidal Nets (LLIN)
- Larvivorous fish + source reduction
- Case detection & treatment:
- EDPT — Early Detection and Prompt Treatment
- Drug Distribution Centres (DDC) and Fever Treatment Depots (FTD) in rural areas
- RDK (Rapid Diagnostic Kits) in inaccessible areas
- Treatment: ACT (Artesunate + Sulfadoxine-Pyrimethamine) for P. falciparum; Chloroquine for P. vivax (+ Primaquine for radical cure)
5. Dengue Control Programme
- GoI Long-Term Action Plan (2007)
- No specific antiviral; treatment is supportive
- Vector: Aedes aegypti (day-biting mosquito; breeds in clean stagnant water)
- Strategies: source reduction, larvicidal measures, fogging, community mobilization, sentinel surveillance
6. Chikungunya
- Monitored under NVBDCP alongside dengue (same vector)
- No vaccine; management supportive
- Reporting through Integrated Disease Surveillance Programme (IDSP)
Overall Strategies of NVBDCP
| Category | Strategies |
|---|---|
| Vector Control | IRS, ITN/LLIN, larvivorous fish, source reduction, biological control |
| Case Management | EDPT, DDC, FTD, RDK, referral services |
| Surveillance | Active and passive surveillance, epidemic preparedness, rapid response |
| Health Communication | BCC (Behaviour Change Communication), IEC |
| Partnerships | PPP (Public-Private Partnership) |
| Support systems | ISC (Inter-Sectoral Coordination), HRD, Operational Research (OR), M&E, GIS |
Key Indicators
| Indicator | Definition |
|---|---|
| API (Annual Parasite Incidence) | No. of confirmed malaria cases per 1,000 population per year |
| ABER (Annual Blood Examination Rate) | % of population examined by blood smear per year (target: ≥10%) |
| SPR (Slide Positivity Rate) | % of slides positive for malaria out of total examined |
| SfR (Slide Falciparum Rate) | % of slides positive for P. falciparum |
| MF Rate | Microfilaria rate (for filariasis) |
Important Mnemonics
Diseases under NVBDCP → "MD JFK" = Malaria, Dengue, JE, Filariasis, Kala-azar, Chikungunya
Three-pronged malaria vector strategy → IRS + ITN + Larvivorous fish
Exam High-Yield Points
- NVBDCP launched: 2003–04
- Covers 6 vector-borne diseases
- Under NHM, Ministry of Health & Family Welfare
- Kala-azar endemic states: Bihar, Jharkhand, WB, UP
- Filaria MDA drug: DEC (+ Albendazole); excludes <2 yrs, pregnant women, seriously ill
- JE vaccine: SA-14-14-2 (live attenuated)
- Malaria elimination target: 2027 (India's NSP)
- API >2 = high-risk area (spray entire area); API <2 = low-risk (focal spray)
- EDPT = cornerstone of malaria case management
- Dengue vector: Aedes aegypti (breeds in clean stagnant water, day-biting)
- Sandfly (Kala-azar) active at dusk and dawn; does NOT fly >1 km
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