# The Current Bird Flu Outbreak Is the Deadliest, Most Persistent in U.S. History

> An analysis from CSIS says the current H5N1 outbreak has affected over 168 million US birds across all 50 states since 2022, making it the longest and deadliest animal disease emergency in US history. Retail egg prices in March 2025 were 60.4% higher than a year earlier.

- Date: 2025-04-30 · published 2025-04-30T12:00:00.000Z
- Category: disease · region US · magnitude low
- Page: https://feedsoft.ai/events/25135-the-current-bird-flu-outbreak-is-the-deadliest-most-persistent-in-u-s-history
- Commodities: [Chicken](https://feedsoft.ai/c/CHICKEN.md)

## Why it matters

Sustained losses of this scale keep the US egg supply constrained and retail prices high, and they signal ongoing vulnerability to further supply shocks. The effect on feed grain and meal demand from layers is gradual rather than immediate.

## Sources

- csis.org: https://www.csis.org/analysis/current-bird-flu-outbreak-deadliest-most-persistent-us-history

---
Data from Feedsoft AI (https://feedsoft.ai/). For information only; not investment advice.