Preventing and Preparing for Pandemics with Zoonotic Origins

Preventing the Next Pandemic at the Source: Dr. Jay Varma Co-Authors CFR Report on Zoonotic Threats

Published in: Council on Foreign Relations
Date: October 2022
Authors: Dr. Jay K. Varma and Dr. Neil Vora

Every viral pandemic since 1900 has one thing in common: a zoonotic origin. In their comprehensive report for the Council on Foreign Relations (CFR), public health experts Dr. Jay Varma and Dr. Neil Vora argue that if we want to prevent the next pandemic, we must address the root cause—spillover of pathogens from animals to humans.

A Call for Primary Pandemic Prevention

Most global pandemic preparedness plans emphasize secondary response—like vaccines, surveillance, and containment. But as Varma and Vora stress, primary pandemic prevention—stopping spillover before it starts—is the most urgent, cost-effective, and equitable strategy available.

“Primary prevention should be at the center of our global pandemic strategy—not an afterthought,” Dr. Varma writes.

This means:

• Halting deforestation and preserving wild habitats
• Regulating live animal markets and wildlife trade
• Improving veterinary care and farm biosecurity
• Investing in community health and economic resilience in spillover hotspots

These efforts, the authors argue, would cost just a fraction of what COVID-19 has cost in lives and dollars—roughly $20 billion per year globally.

Why Zoonotic Spillover Matters

Viruses like HIV, SARS, Ebola, and COVID-19 all originated in animals. Spillover is driven by human behaviors—land use change, encroachment into wild ecosystems, poor infection control in animal agriculture, and global trade.

But not every spillover becomes an epidemic. That depends on:

• How the virus spreads (e.g., respiratory droplets, mosquito bites)
• Whether humans have any immunity
• How quickly it can be detected and contained

The report argues for layered prevention strategies—starting with primary prevention, followed by investments in:

• Surveillance (in humans and animals)
• Rapid diagnostics
• Vaccines and treatments
• Public health workforce expansion
• Resilient primary care systems
• Trusted communication strategies to counter misinformation

The Overlooked Risk of “Spillback”

One of the report’s most urgent warnings concerns spillback—when a virus jumps from humans back into animals and then mutates before re-infecting people. This is a leading theory for the emergence of the Omicron variant and is a growing concern for diseases like monkeypox.

A Missed Opportunity in Global Policy

Despite strong rhetoric on pandemic preparedness, Varma and Vora point out that most major global initiatives—from the WHO to G20 panels—have ignored primary prevention. Instead, they double down on vaccines and emergency response, often to the exclusion of root-cause strategies.

The result? A reactive posture that leaves the world exposed.

The Path Forward

The CFR report is a clear, actionable framework for pandemic resilience that prioritizes equity, sustainability, and prevention. It urges policymakers to:

• Fund nature-based solutions
• Treat pandemic prevention as interlinked with climate, biodiversity, and development agendas
• Embed primary prevention in WHO and World Bank frameworks before global attention shifts elsewhere

📖 Read the full report:
👉 Preventing and Preparing for Pandemics With Zoonotic Origins