# Avian Flu Diary: Washington State Reports 3 More Dairy Herds Infected with H5N1 (n=30)

> Washington State has reported three more dairy herds infected with H5N1, bringing its total to 30, after previously having no reported dairy infections. Texas and Kansas have also reported outbreaks in recent weeks. The virus has been identified as B3.13, and its farm-to-farm spread method is not yet known.

- Date: 2026-10-31 · published 2026-11-01T06:14:26.940Z
- Category: disease · region US · magnitude medium
- Page: https://feedsoft.ai/events/4474-avian-flu-diary-washington-state-reports-3-more-dairy-herds-infected-with-h5n1
- Commodities: [Milk (Class III)](https://feedsoft.ai/c/MILK.md)

## Why it matters

A rising count of infected herds across several states points to ongoing dairy supply pressure and could reduce milk output. The unknown transmission route adds uncertainty about how far the outbreak will spread.

## Read by commodity

- MILK: bearish ▼

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| MILK | 2024-07-15 | [Tests confirm H5N1 in Oklahoma dairy herd; 13 states now affected \| CIDRAP](https://feedsoft.ai/events/16076-tests-confirm-h5n1-in-oklahoma-dairy-herd-13-states-now-affected-cidrap.md) | +0.5% | +3.6% |
| MILK | 2024-06-15 | [Bird flu risk is restricted to those who work with dairy cattle — for now : NPR](https://feedsoft.ai/events/16088-bird-flu-risk-is-restricted-to-those-who-work-with-dairy-cattle-for-now-npr.md) | +0.3% | -0.6% |
| MILK | 2025-02-21 | [U.S. Milk Production Report—January 2025: Navigating Avian Flu Impacts and Market Dynamics \| The Bullvine](https://feedsoft.ai/events/26041-u-s-milk-production-report-january-2025-navigating-avian-flu-impacts-and-market.md) | -0.5% | -8.8% |
| MILK | 2024-08-30 | [Bird flu infects California dairy cows, widening US outbreak](https://feedsoft.ai/events/16067-bird-flu-infects-california-dairy-cows-widening-us-outbreak.md) | +10.5% | +13.1% |
| MILK | 2024-04-03 | [HPAI Fails to Impact Dairy Prices So Far - Why Markets Could Actually See Some Growth in the Near Future - Dairy Herd](https://feedsoft.ai/events/6733-hpai-fails-to-impact-dairy-prices-so-far-why-markets-could-actually-see-some.md) | -4.7% | -5.0% |

## Sources

- afludiary.blogspot.com: https://afludiary.blogspot.com/2026/10/colorado-reports-1st-h5n1-in-dairy.html
- afludiary.blogspot.com: https://afludiary.blogspot.com/2026/10/washington-state-reports-3-more-dairy.html

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