One Health and Pandemic Preparedness: India and the 2025 Rulebook, Exam-Ready Notes

About three in four new human infectious diseases emerge from animals — a statistic that quietly rewrites how a state must be built. COVID was the rehearsal; the WHO Pandemic Agreement adopted on 20 May 2025 is the institutional response, and between those poles sits the idea this card exists to teach: One Health, the recognition that human, animal and ecosystem health are one ledger. India — with the world’s largest livestock population, dense human-animal interfaces, and a pharmaceutical industry that supplies the world — is either the idea’s best laboratory or its hardest test. For exams, pandemic preparedness cycles through prelims statements and mains essays with metronome regularity; this card assembles the concept, the institutions, the India machinery, and the economic arithmetic that makes preparedness a growth policy wearing a stethoscope.

The subject bridges this site’s science-policy spine: the climate-pressure card maps the climate pressures that are widening the human-wildlife interface behind zoonotic emergence, and the $5-trillion roadmap card carries the macro-economy whose supply chains a pandemic seizes.

The One Health Idea

Concept first, institutions second.

1. Definition. One Health is an integrated, unifying approach that optimises the health of humans, domestic and wild animals, and the wider environment — the Quadripartite definition (WHO, FAO, WOAH, UNEP) that exams quote.
2. Zoonotic share. Roughly seventy-five per cent of emerging human infectious diseases are zoonotic — spillover at the human-animal-environment interface; the number that justifies the entire architecture.
3. The drivers. Deforestation, agricultural intensification, live-animal markets, wildlife trade and urbanisation — interface-wideners, each with a climate or development policy attached, as the extreme-weather card documents.
4. AMR, the slow pandemic. Antimicrobial resistance kills hundreds of thousands in India annually on conservative estimates — the One Health problem that never needed a novel virus to become an emergency; the silent-half of every preparedness answer.
5. The exam framing. “One Health” is not a programme but a governance principle — questions test whether candidates can name the interface, the drivers and the Quadripartite in one paragraph.

The Global Rulebook

From IHR to the Pandemic Agreement — the 2025 milestone.

1. IHR 2005. The International Health Regulations — the binding framework requiring states to build core surveillance capacities and report events of international concern; the legal spine of outbreak response.
2. The pandemic treaty timeline. Negotiations 2021-2025 under WHO — INB sessions through the thick of it; adopted at the World Health Assembly on 20 May 2025.
3. What the Agreement does. Pathogen access and benefit-sharing (PABS), pandemic-related product distribution, technology transfer commitments, a Coordinating Financial Mechanism — the four pillars exams list.
4. India’s position. Constructive engagement centred on equity — pathogen data shared must return as vaccine access; the genetic-sequence benefit-sharing provisions as the developing-world win India pushed for.
5. The US withdrawal note. The pandemic-instrument landscape carries the complication of the US exit from WHO (announced January 2025) — a realignment that makes the Agreement’s universal-membership adoption more striking, and a current-affairs hook examiners like.

India’s Institutional Map

The domestic machinery, layer by layer.

1. National One Health Mission 2022. The whole-of-government platform — nine-plus departments and ministries coordinated by the Principal Scientific Advisor’s office; the answer to “who runs One Health in India”.
2. IBPM, the surveillance net. The Integrated Public Health Surveillance and Pandemic Preparedness Framework — the National Centre for Disease Control’s revamped architecture with sentinel and lab networks as its eyes; the detection layer.
3. NIV Bhubaneswar and the lab tier. National Institute of Virology regional campuses and the BSL-tier expansion — the laboratory depth that decides whether a novel pathogen is identified in days or weeks.
4. Animal-health wing. Department of Animal Husbandry & Dairying — the National Disease Control Programmes (FMD, brucellosis) and the livestock census interfaces; One Health’s animal leg.
5. The wildlife interface. Wildlife health specialist units and the WII-IITC collaboration lineage — the environmental leg that watches the forest side of spillover.

The Disease Watchlist

What the surveillance net is watching — and why these names.

1. Zoonotic influenza. H5N1’s global spread through poultry and into dairy herds abroad kept avian influenza on every watchlist through 2024-25 — the candidate pathogen whose pandemic-risk profile exams test as “reassortment”.
2. Nipah in Kerala. India’s recurring Nipah outbreaks — bat-borne, high case-fatality, contained locally every time — the domestic case study of interface spillover and rapid containment.
3. Zoonotic TB and brucellosis. Bovine tuberculosis and brucellosis — chronic livestock-to-human transmission that burdens exactly the interface population; the endemic zoonoses that never make headlines but fill the notifiable lists.
4. Crimean-Congo and tick-borne. CCHF’s recurring Gujarat detections — the vector-borne zoonosis whose range maps move with the climate, a live the vector-range card crossover.
5. AMR pathogen watch. The priority pathogen list — carbapenem-resistant infections tracked through the AMR surveillance network; the slow pandemic’s watchlist, running parallel to the fast ones.

The Vaccine and Pharma Arithmetic

Why India is indispensable to any global regime.

1. Pharmacy of the world. India supplies about one-fifth of global generic medicines by volume and over sixty per cent of the world’s vaccines — the production base every pandemic instrument ultimately draws on.
2. COVID’s proof. Covishield and Covaxin at billion-dose scale, Covax deliveries, the vaccine friendship diplomacy — the demonstrated capacity that anchors India’s treaty negotiating position.
3. The preparedness gap. “100 Days Mission” — the goal of a ready-to-use vaccine platform within a hundred days of a novel threat; mRNA and other platform technologies are the means, distribution the binding constraint.
4. The genomic surveillance tier. INSACOG — the consortium built for COVID variant tracking and retained as permanent infrastructure; the template answer for surveillance questions and a measured pride point with numbers (thousands of samples weekly).
5. The biosecurity tension. Pathogen research itself carries dual-use risk — the reason the Agreement’s benefit-sharing chapter had to be written carefully; the governance question that accompanies every capability answer.

Pandemic Economics

The growth argument for preparedness.

1. The cost asymmetry. COVID’s global cost ran in trillions of dollars; competent preparedness costs billions — the benefit-cost ratio that makes preparedness an investment, not expenditure; the one-line economic case.
2. The supply-chain lesson. A pandemic seizes the supply chains that the growth-story card maps — pharma ingredients, electronics, logistics — resilience is national economic policy, not merely health policy.
3. The fiscal architecture. Pandemic funds, contingency lines and the Centre-state split of response costs — the fiscal-federal question that Gujarat’s and Kerala’s contrasting outcomes sharpened.
4. The insurance frontier. Pandemic bonds and parametric covers — market instruments for a correlated risk the insurance industry has priced only partially; the financial-innovation angle mains essays reward.
5. The labour dimension. Informal-sector workers absorb the harshest shocks — no remote-work option, no unemployment insurance; the distributive profile that links preparedness to the employment card’s informality analysis.

How Exams Ask This Card

Statement pairs and essay skeletons.

1. Chronology statements. IHR 2005 → COVID (2020) → INB talks (2021-25) → Agreement adopted 20 May 2025 — sequence questions drop a wrong date; the 2025 adoption is this year’s testing favourite.
2. Definition matching. One Health = human + animal + environmental integration; PABS = pathogen access and benefit-sharing; Quadripartite = WHO/FAO/WOAH/UNEP — three definitions, three possible errors.
3. Institution matching. National One Health Mission (2022, PSA office) vs IBPM (NCDC surveillance) vs INSACOG (genomics) — which body does what; the domestic-institution question that separates ranks.
4. Critical essays. “Pandemic preparedness is economic policy” — the benefit-cost case, supply-chain resilience and the fiscal architecture; close with the insurance frontier for a full-marks arc.
5. AMR as stealth test. Questions rarely announce AMR — they arrive as “misuse of antibiotics in livestock” statements; recognising the One Health frame inside the wording is the mark.

Quick Revision: Ten Lines

One glance before the hall.

1. Core number. ~75% of emerging human infectious diseases are zoonotic — spillover at the human-animal-environment interface.
2. Quadripartite. WHO + FAO + WOAH + UNEP — the four agencies defining and driving One Health globally.
3. Legal spine. IHR 2005 — surveillance capacities + event reporting; the binding baseline.
4. The 2025 milestone. WHO Pandemic Agreement adopted 20 May 2025 (WHA78) — PABS, product distribution, tech transfer, Coordinating Financial Mechanism.
5. India platform. National One Health Mission 2022 — whole-of-government platform under the PSA’s coordination.
6. Surveillance. IBPM framework + NCDC networks + INSACOG genomics — detection, identification, tracking.
7. Production base. ~20% of global generics by volume; >60% of world vaccine doses — the capacity behind the equity demand.
8. Watchlist. H5N1 spread, Nipah containment in Kerala, zoonotic TB/brucellosis, CCHF, AMR priority pathogens.
9. Economics. Trillions (COVID cost) vs billions (preparedness) — the benefit-cost case; resilience as supply-chain policy.
10. The synthesis line. “The next pandemic is a budget line, not a surprise” — preparedness as investment; the closing sentence of any full answer.

Conclusion: One Ledger

The One Health idea earns its capitals because it is an accounting statement: human health, animal health and ecosystem health post to the same balance sheet, and spillover is what happens when the ledger is kept separately. India runs the world’s largest One Health ledger — the biggest livestock population, the densest interfaces, the pharmacy the world draws on — and by mid-2025 it held both the domestic machinery and the global instrument: a National Mission inside, a Pandemic Agreement outside. The exam-ready synthesis is the one this card keeps repeating: preparedness is not a health-sector expenditure but a macroeconomic insurance premium, paid in surveillance labs and vaccine platforms against a trillion-dollar tail risk. The next pathogen will not consult the ministry organograms; it will simply find the interface — and the state that has mapped the interface first, wins.