GS Paper III · Disaster Management · Chapter 12 · Updated April 2026
🏥 Health & Disaster Management
Public Health Impacts · Pandemic Preparedness · COVID-19 Lessons · WHO Pandemic Agreement 2025 · IHR Amendments · PM-ABHIM · One Health · IDSP/IHIP · Heat Wave Health Crisis · Vector-Borne Diseases · NITI Aayog Report · Mains PYQs
🏥
Impact of Disasters on Public Health
Immediate · Medium-term · Long-term · Mental Health · Vector-Borne · Nutrition · Water
📖 The Health–Disaster NexusDisasters impact health at every phase: immediate injuries and deaths, medium-term disease outbreaks from disrupted water/sanitation, and long-term mental health consequences. Climate change is amplifying health-disaster interactions — heat-related mortality, vector-borne disease expansion, malnutrition from crop failure, air pollution deaths. Yet health was inadequately addressed in the Hyogo Framework — Sendai explicitly includes health resilience for the first time.
🚨 Immediate Impact
Trauma injuries, drowning, crush injuries, burns. Mass casualties overwhelm local health facilities. Loss of health infrastructure — hospitals, clinics destroyed. Medical supply disruption.
🦟 Disease Outbreaks
Post-flood: cholera, typhoid, leptospirosis, diarrhoeal diseases from contaminated water. Vector-borne: dengue, malaria, chikungunya — mosquito habitats expand. Changing temperatures expanding disease vectors (Lancet 2025).
💧 Water & Sanitation
Water sources contaminated. Sanitation infrastructure damaged. Open defecation in relief camps. Cholera/dysentery outbreaks common post-floods. NDMA Minimum Standards: 3 litres/day/person.
🧠 Mental Health
PTSD, anxiety, depression among survivors. Children especially vulnerable. Psycho-social support critical but often neglected. Wayanad 2024 — significant mental health needs in survivor community.
🌡️ Heat & Air Pollution
48,156 heatstroke cases (Mar-Jul 2024, NCDC). PM2.5: 17 lakh deaths in 2022 (Lancet), 38% rise since 2010. Air pollution losses = 9.5% of GDP. Heat waves still NOT notified as disaster.
🍚 Nutrition & Food
Crop damage → food insecurity → malnutrition. Disrupted supply chains. Children, pregnant women, elderly worst affected. NDMA Minimum: 2,400 Kcal/day in relief.
🦠
COVID-19 — Lessons for Health-Disaster Management
First Biological Disaster Under DM Act · Legal Gaps · Migrant Crisis · What Worked · What Didn't
🧠 The Biggest LessonCOVID-19 was the first pan-India biological disaster managed under the DM Act 2005. It exposed that the Act was designed for sudden-onset natural disasters — not slow-evolving biological crises. The primary legal weapon was the Epidemic Diseases Act of 1897 (colonial-era), supplemented by the DM Act. Neither had provisions for clinical guidance, localised responses, supply chain logistics, or pandemic-specific protocols.
✅ What Worked
Empowered Groups & Task Forces enabled rapid decision-making · Science-based approach — ICMR, INSACOG for genomic surveillance · Vaccine development — Covishield, Covaxin, world's largest vaccination drive · Digital tools — Aarogya Setu, CoWIN platform · NDRF deployed for logistics & evacuation · ICCCs repurposed as COVID war rooms · Armed forces supported medical infra
❌ What Failed
Migrant crisis — millions walked home. No protocol for mass displacement during lockdown · Over-centralisation — DM Act used for lockdowns but states had limited autonomy · Health infrastructure overwhelmed — oxygen shortages, ICU beds, cremation backlogs · Courts constrained — limited judicial oversight of emergency powers · Risk communication gaps — no efficient two-way data sharing · Legal inadequacy — 1897 Epidemic Act + 2005 DM Act = insufficient for pandemic governance
⚡ Key Mains InsightCOVID-19 demonstrated that the DM cycle needs a "Restriction" and "Refrain" dimension beyond the traditional 3 Rs (Rescue, Relief, Restoration). The DM Amendment Act 2025, while significant, still doesn't adequately cover pandemic/biological disaster preparedness. NITI Aayog's Expert Group (2024) recommended a dedicated Public Health Emergency Management Act — this hasn't been enacted yet.
🛡️
India's Health Emergency Preparedness Framework
PM-ABHIM · IDSP/IHIP · One Health · NCDC · INSACOG · AMR · NITI Aayog Report
🏥 PM-ABHIM — Ayushman Bharat Health Infrastructure Mission₹64,180 CR
Launched
October 2021. ₹64,180 crore (2021-26). One of largest health infrastructure programmes. MoHFW.
Objectives
Build pandemic-ready health infra at all levels. Upgrade Ayushman Arogya Mandirs (AAMs), Block Public Health Units (BPHUs), Integrated District Public Health Labs (IDPHLs), Critical Care Hospital Blocks (CCBs). Create nationwide disease surveillance network.
DRR Link
Directly contributes to SDG-3. Aligns with WHO Pandemic Agreement. Builds decentralised rapid response systems. Real-time IT-enabled surveillance from block → district → national level.
📡 IDSP / IHIP — Disease Surveillance
IDSP
Integrated Disease Surveillance Programme. Backbone of India's outbreak detection. Weekly reporting from districts. Covers epidemic-prone diseases. Under PM-ABHIM: being upgraded significantly.
IHIP
Integrated Health Information Platform — next-gen, real-time, web-based electronic surveillance. Replacing paper-based IDSP. Scaled to 24 states. PM-ABHIM transferring management from WHO to MoHFW. Cloud-hosted. IT units at MoHFW & NCDC.
🐾 One Health ApproachCRITICAL
What
Integrates human, animal, and environmental health surveillance. Recognises that 75% of emerging infectious diseases are zoonotic (animal-to-human). Critical for India: high population density, close human-animal-environment interface, significant agricultural sector.
India
National One Health Mission being developed. Requires coordination between MoHFW, Ministry of Animal Husbandry, MoEFCC. WHO Pandemic Agreement emphasises One Health across sectors.
🧬 Key Institutions
NCDC
National Centre for Disease Control — apex body for disease surveillance. Reported 48,156 heatstroke cases (2024). Manages IDSP.
ICMR
Indian Council of Medical Research — research, testing, vaccine coordination. Led COVID-19 testing strategy.
INSACOG
Indian SARS-CoV-2 Genomics Consortium — genomic surveillance. Being upgraded to INSACOG 2.0 for future pathogen tracking.
AMR
National AMR Surveillance Network — 65 hospitals across 27 states & 5 UTs. CDC-India collaboration. India needs 7,000+ epidemiologists (vs IHR targets).
📋 NITI Aayog — Future Pandemic Preparedness Report (2024)KEY
Key Rec
1. Dedicated Public Health Emergency Management Act — clearer roles, faster approvals, built-in accountability (still not enacted). 2. Rapid Response Plan with clear delegation. 3. Efficient two-way risk communication system. 4. Align with WHO's PRET framework. 5. Strengthen epidemiological capacity. 6. Replace 19th-century laws (Epidemic Act 1897) with 21st-century framework.
🌍
WHO & International Health Organisations
WHO Pandemic Agreement 2025 · IHR 2024 Amendments · PHEIC · Sendai Health · WHO India
🌍 WHO Pandemic Agreement (May 2025)LANDMARK
Adopted
78th World Health Assembly, 20 May 2025. Under Article 19 of WHO Constitution. World's first global Pandemic Agreement — only 2nd legal instrument after 2003 Tobacco Control Convention.
Key
Comprehensive approach to pandemic prevention, preparedness & response (PPR). Ensures fair access to vaccines, diagnostics, therapeutics. Pathogen Access & Benefits Sharing (PABS) system being negotiated. Emphasises One Health, sustained R&D investment (Article 9), global equity.
India Link
PM-ABHIM aligns with Agreement's objectives. Strengthens India's commitment to IDSP/IHIP, INSACOG 2.0, One Health. India's vaccine manufacturing capacity (Vaccine Maitri) relevant to equitable access mandate.
📋 IHR 2024 Amendments (In Force Sep 2025)NEW
Key
Pandemic Emergency = new tier above PHEIC (DG-WHO declares). National IHR Authorities must be designated. Coordinating Financial Mechanism for developing nations. States Parties Committee for implementation (non-punitive). Entry into force: 19 September 2025.
PHEIC
Public Health Emergency of International Concern — highest WHO alert level pre-2024. Now: Pandemic Emergency = higher tier built on PHEIC criteria. COVID-19, Mpox, Ebola were declared PHEICs.
🏥 Sendai Framework — Health Component
Shift
Sendai explicitly includes health resilience — absent in Hyogo. Target D: reduce disaster damage to health facilities. Broader scope: biological, technological hazards. Links DRR with health systems strengthening. Multi-hazard approach includes pandemics.
🌍 Other International Health Organisations
WHO India
Technical support for IDSP/IHIP implementation. COVID-19 response coordination. CDRI-WHO Sikkim health infra resilience project (2025). Training & capacity building. FETP (Field Epidemiology Training Programme) with CDC.
Others
UNICEF: child health in emergencies, nutrition, WASH. Red Cross/ICRC: humanitarian health, IHL. MSF: frontline medical response. CDC-India: AMR surveillance (65 hospitals, 27 states), FETP (26,000+ trained). World Bank: PM-ABHIM support, PHSSP.
📝
Mains PYQs & Mock Questions
Answer Frameworks
🎯 Mock — COVID-19 & India's DM Framework (250W, 15M)
COVID-19 was the first pan-India biological disaster managed under the Disaster Management Act. Critically evaluate how India's DM framework performed during the pandemic and suggest reforms for future health emergencies.
Intro: COVID = first biological disaster under DM Act 2005. Revealed strengths and critical gaps. India relied on 1897 Epidemic Diseases Act + 2005 DM Act — neither designed for pandemics.
What worked: (a) DM Act enabled rapid lockdowns, resource requisition, quarantine enforcement, (b) Empowered Groups/Task Forces for decision-making, (c) ICCCs repurposed as COVID war rooms, (d) NDRF deployed for logistics, (e) ICMR-led testing strategy, INSACOG genomic surveillance, (f) CoWIN platform — world's largest digital vaccination drive, (g) Vaccine development — Covishield, Covaxin.
What failed: (a) Migrant crisis — no protocol for mass displacement during lockdown, (b) Over-centralisation — states lacked autonomy, (c) Health infra overwhelmed — oxygen crisis, ICU shortages, cremation backlogs (second wave), (d) Risk communication gaps — no two-way data sharing, (e) Judicial oversight limited, (f) DM Act lacks clinical guidance, localised response, supply chain provisions, (g) Epidemic Act 1897 = colonial relic, inadequate.
Reforms needed: (a) Dedicated Public Health Emergency Management Act (NITI Aayog rec — not enacted), (b) Clear delegation of authority for rapid response, (c) One Health approach — human-animal-environment surveillance integration, (d) IHIP nationwide rollout for real-time surveillance, (e) Build INSACOG 2.0 for future pathogen tracking, (f) Strengthen district-level health emergency capacity, (g) 7,000+ epidemiologists needed (IHR target), (h) Align with WHO Pandemic Agreement 2025 & IHR amendments.
Conclude: COVID proved DM Act needs a 'Restriction' and 'Refrain' dimension beyond 3 Rs. The 2025 Amendment is significant but still doesn't cover biological emergencies. A dedicated health emergency law is the critical missing piece.
What worked: (a) DM Act enabled rapid lockdowns, resource requisition, quarantine enforcement, (b) Empowered Groups/Task Forces for decision-making, (c) ICCCs repurposed as COVID war rooms, (d) NDRF deployed for logistics, (e) ICMR-led testing strategy, INSACOG genomic surveillance, (f) CoWIN platform — world's largest digital vaccination drive, (g) Vaccine development — Covishield, Covaxin.
What failed: (a) Migrant crisis — no protocol for mass displacement during lockdown, (b) Over-centralisation — states lacked autonomy, (c) Health infra overwhelmed — oxygen crisis, ICU shortages, cremation backlogs (second wave), (d) Risk communication gaps — no two-way data sharing, (e) Judicial oversight limited, (f) DM Act lacks clinical guidance, localised response, supply chain provisions, (g) Epidemic Act 1897 = colonial relic, inadequate.
Reforms needed: (a) Dedicated Public Health Emergency Management Act (NITI Aayog rec — not enacted), (b) Clear delegation of authority for rapid response, (c) One Health approach — human-animal-environment surveillance integration, (d) IHIP nationwide rollout for real-time surveillance, (e) Build INSACOG 2.0 for future pathogen tracking, (f) Strengthen district-level health emergency capacity, (g) 7,000+ epidemiologists needed (IHR target), (h) Align with WHO Pandemic Agreement 2025 & IHR amendments.
Conclude: COVID proved DM Act needs a 'Restriction' and 'Refrain' dimension beyond 3 Rs. The 2025 Amendment is significant but still doesn't cover biological emergencies. A dedicated health emergency law is the critical missing piece.
🎯 Mock — WHO Pandemic Agreement & India (250W, 15M)
The WHO Pandemic Agreement adopted in May 2025 is the world's first comprehensive treaty on pandemic preparedness. Discuss its key provisions and evaluate its implications for India's health and disaster management framework.
Intro: Adopted at 78th WHA, 20 May 2025 under Article 19. World's 2nd health legal instrument (after 2003 Tobacco Convention). Comprehensive PPR approach.
Key provisions: (a) Equitable access to vaccines, diagnostics, therapeutics, (b) PABS (Pathogen Access & Benefits Sharing) system, (c) One Health approach — human-animal-environment surveillance, (d) Sustained R&D investment (Article 9), (e) Strengthening national surveillance & IHR compliance, (f) Coordinating Financial Mechanism for developing nations, (g) Complements IHR amendments (in force Sep 2025) — new "Pandemic Emergency" tier above PHEIC.
Implications for India: (a) PM-ABHIM (₹64,180 cr) directly aligns — health infra from primary to tertiary, disease surveillance, (b) IDSP/IHIP upgrade supports surveillance mandate — scaled to 24 states, (c) One Health = critical for India — high zoonotic risk, dense human-animal interface, (d) INSACOG 2.0 for pathogen genomic surveillance, (e) India's vaccine manufacturing capacity (Vaccine Maitri) relevant to equitable access, (f) AMR surveillance network (65 hospitals) aligns with biosecurity provisions, (g) Need dedicated Public Health Emergency Management Act (NITI Aayog).
Challenges: (a) PABS system negotiations ongoing — IP/access tensions, (b) India needs 7,000+ epidemiologists vs current capacity, (c) State-level health systems vary drastically, (d) IHIP not nationwide yet, (e) One Health requires inter-ministerial coordination (MoHFW, Animal Husbandry, MoEFCC) — historically weak.
Conclude: The Pandemic Agreement is a watershed moment for global health governance. For India, it validates PM-ABHIM's direction but exposes the gap between infrastructure investment and institutional readiness — especially the absence of a dedicated pandemic law.
Key provisions: (a) Equitable access to vaccines, diagnostics, therapeutics, (b) PABS (Pathogen Access & Benefits Sharing) system, (c) One Health approach — human-animal-environment surveillance, (d) Sustained R&D investment (Article 9), (e) Strengthening national surveillance & IHR compliance, (f) Coordinating Financial Mechanism for developing nations, (g) Complements IHR amendments (in force Sep 2025) — new "Pandemic Emergency" tier above PHEIC.
Implications for India: (a) PM-ABHIM (₹64,180 cr) directly aligns — health infra from primary to tertiary, disease surveillance, (b) IDSP/IHIP upgrade supports surveillance mandate — scaled to 24 states, (c) One Health = critical for India — high zoonotic risk, dense human-animal interface, (d) INSACOG 2.0 for pathogen genomic surveillance, (e) India's vaccine manufacturing capacity (Vaccine Maitri) relevant to equitable access, (f) AMR surveillance network (65 hospitals) aligns with biosecurity provisions, (g) Need dedicated Public Health Emergency Management Act (NITI Aayog).
Challenges: (a) PABS system negotiations ongoing — IP/access tensions, (b) India needs 7,000+ epidemiologists vs current capacity, (c) State-level health systems vary drastically, (d) IHIP not nationwide yet, (e) One Health requires inter-ministerial coordination (MoHFW, Animal Husbandry, MoEFCC) — historically weak.
Conclude: The Pandemic Agreement is a watershed moment for global health governance. For India, it validates PM-ABHIM's direction but exposes the gap between infrastructure investment and institutional readiness — especially the absence of a dedicated pandemic law.
🎯 Mock — Heat Waves as Health Emergency (150W, 10M)
Heat waves are India's deadliest silent disaster yet remain unnotified under the DM Act. Discuss the public health implications and suggest a comprehensive framework for heat wave health management.
Scale: 24,000+ deaths since 1992. 48,156 suspected heatstroke cases (Mar-Jul 2024, NCDC). Delhi 49.9°C (2024). UHI amplifies by 2-5°C. Climate change → more frequent, intense, prolonged heat waves.
Health implications: (a) Heatstroke, dehydration, cardiovascular/renal failure, (b) Outdoor workers (construction, agriculture, delivery) = most vulnerable, (c) Children, elderly, pregnant women at higher risk, (d) Urban poor — no access to cooling, (e) Expanding vector-borne disease zones, (f) Interaction with air pollution = compound health crisis.
Framework needed: (a) Notify heat waves as disaster under DM Act — enable SDRF/NDRF relief, (b) Heat Action Plans mandated for all cities (Ahmedabad HAP 2013 = model), (c) Cool roofs, green roofs, urban forests — nature-based cooling, (d) Shift outdoor work hours during heat alerts, (e) IMD heat EWS linked to health response — hospital preparedness triggers, (f) CDRI Heat-Smart Schools (2025), (g) Drinking water stations, ORS distribution, (h) 16th FC DRI includes heatwave as hazard — leverage this for funding, (i) Real-time heatstroke surveillance via IHIP/IDSP.
Conclude: Heat waves are India's deadliest unnotified disaster. The gap between 48,156 heatstroke cases and zero formal DM response is unconscionable. Notification + Ahmedabad HAP model + 16th FC DRI inclusion = the reform pathway.
Health implications: (a) Heatstroke, dehydration, cardiovascular/renal failure, (b) Outdoor workers (construction, agriculture, delivery) = most vulnerable, (c) Children, elderly, pregnant women at higher risk, (d) Urban poor — no access to cooling, (e) Expanding vector-borne disease zones, (f) Interaction with air pollution = compound health crisis.
Framework needed: (a) Notify heat waves as disaster under DM Act — enable SDRF/NDRF relief, (b) Heat Action Plans mandated for all cities (Ahmedabad HAP 2013 = model), (c) Cool roofs, green roofs, urban forests — nature-based cooling, (d) Shift outdoor work hours during heat alerts, (e) IMD heat EWS linked to health response — hospital preparedness triggers, (f) CDRI Heat-Smart Schools (2025), (g) Drinking water stations, ORS distribution, (h) 16th FC DRI includes heatwave as hazard — leverage this for funding, (i) Real-time heatstroke surveillance via IHIP/IDSP.
Conclude: Heat waves are India's deadliest unnotified disaster. The gap between 48,156 heatstroke cases and zero formal DM response is unconscionable. Notification + Ahmedabad HAP model + 16th FC DRI inclusion = the reform pathway.
⚡ Quick Revision — Health & Disaster Management
🏥 Health Impact
Key
Immediate (trauma), medium (disease outbreaks — cholera, dengue), long-term (PTSD, malnutrition). 48,156 heatstroke cases 2024. 17L PM2.5 deaths (Lancet 2022). Heat waves NOT notified.
🦠 COVID Lessons
Key
1st biological disaster under DM Act. 1897 Epidemic Act = colonial relic. Need 'Restriction' + 'Refrain' beyond 3 Rs. NITI Aayog: dedicated Public Health Emergency Management Act. DM Amendment 2025 still doesn't cover pandemics adequately.
🛡️ Preparedness
Key
PM-ABHIM ₹64,180 cr (2021-26). IDSP → IHIP (real-time, 24 states). One Health (75% emerging diseases zoonotic). NCDC, ICMR, INSACOG 2.0. AMR Network (65 hospitals). Need 7,000+ epidemiologists.
🌍 WHO & Global2025
Key
WHO Pandemic Agreement (May 2025, Art 19, 1st treaty). IHR Amendments (Sep 2025, Pandemic Emergency tier). PABS system. Sendai = first DRR framework with health. CDC-India: 26,000 trained. CDRI-WHO Sikkim.
🚨 5 High-Value Mains Points:
1. WHO Pandemic Agreement 2025 = Must-Cite: World's first pandemic treaty. Adopted 78th WHA, May 2025. 2nd WHO legal instrument after Tobacco Convention. Equitable access, PABS, One Health, R&D. Very high probability for 2026 Mains — crosses GS2 (international) + GS3 (DM/health).
2. COVID = DM Act's Biggest Test: DM Act was designed for sudden-onset natural disasters, not slow-evolving biological crises. 1897 Epidemic Act + 2005 DM Act = inadequate. Need dedicated Public Health Emergency Management Act (NITI Aayog). 2025 Amendment still doesn't fix this. Powerful critique point.
3. One Health = The Future Framework: 75% of emerging diseases are zoonotic. India = high-risk (dense population, close human-animal interface). WHO Pandemic Agreement mandates One Health. India developing National One Health Mission. Requires MoHFW + Animal Husbandry + MoEFCC coordination — historically weak.
4. PM-ABHIM = India's Pandemic Preparedness Investment: ₹64,180 crore — one of largest health infra programmes. AAMs, BPHUs, IDPHLs, CCBs. IHIP for real-time surveillance. Aligns with SDG-3 and WHO Pandemic Agreement. Use this for both health AND DM answers.
5. Heat Waves = Health Emergency NOT in DM Framework: 48,156 heatstroke cases in 2024 but NO formal DM response because heat waves are unnotified. 16th FC DRI includes heatwave as hazard — signals change. Ahmedabad HAP = proven model. This gap is the most effective critique point in any health-DM answer.
1. WHO Pandemic Agreement 2025 = Must-Cite: World's first pandemic treaty. Adopted 78th WHA, May 2025. 2nd WHO legal instrument after Tobacco Convention. Equitable access, PABS, One Health, R&D. Very high probability for 2026 Mains — crosses GS2 (international) + GS3 (DM/health).
2. COVID = DM Act's Biggest Test: DM Act was designed for sudden-onset natural disasters, not slow-evolving biological crises. 1897 Epidemic Act + 2005 DM Act = inadequate. Need dedicated Public Health Emergency Management Act (NITI Aayog). 2025 Amendment still doesn't fix this. Powerful critique point.
3. One Health = The Future Framework: 75% of emerging diseases are zoonotic. India = high-risk (dense population, close human-animal interface). WHO Pandemic Agreement mandates One Health. India developing National One Health Mission. Requires MoHFW + Animal Husbandry + MoEFCC coordination — historically weak.
4. PM-ABHIM = India's Pandemic Preparedness Investment: ₹64,180 crore — one of largest health infra programmes. AAMs, BPHUs, IDPHLs, CCBs. IHIP for real-time surveillance. Aligns with SDG-3 and WHO Pandemic Agreement. Use this for both health AND DM answers.
5. Heat Waves = Health Emergency NOT in DM Framework: 48,156 heatstroke cases in 2024 but NO formal DM response because heat waves are unnotified. 16th FC DRI includes heatwave as hazard — signals change. Ahmedabad HAP = proven model. This gap is the most effective critique point in any health-DM answer.
