# Farmworker Union Warns H5N1 Bird Flu Cases May Be Going Undetected

> The United Farm Workers union says dairy workers in Washington State's Yakima Valley have symptoms consistent with avian influenza but have not been tested. Yakima Health District has confirmed three human H5N1 infections in the county, including one fatal case reported November 1.

- Date: 2026-11-15 · published 2026-11-15T03:14:16.350Z
- Category: disease · region US · magnitude low
- Page: https://feedsoft.ai/events/100597-farmworker-union-warns-h5n1-bird-flu-cases-may-be-going-undetected
- Commodities: [Milk (Class III)](https://feedsoft.ai/c/MILK.md)

## Why it matters

Undetected infections in dairy herds could signal wider spread of H5N1 among cattle, raising the risk of further herd disruption and milk supply concerns. The union has offered no lab-confirmed figures, so the price impact is speculative.

## Read by commodity

- MILK: neutral

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| MILK | 2024-07-10 | [Bird flu response in Michigan sparks COVID-era worry on farms \| Reuters](https://feedsoft.ai/events/29269-bird-flu-response-in-michigan-sparks-covid-era-worry-on-farms-reuters.md) | -0.1% | +2.6% |
| MILK | 2025-04-01 | [Bird Flu's Varied Impacts on Egg and Milk Markets](https://feedsoft.ai/events/25732-bird-flu-s-varied-impacts-on-egg-and-milk-markets.md) | -8.4% | -6.5% |
| MILK | 2024-08-23 | [How scientists are working to solve the bird flu outbreak \| AP News](https://feedsoft.ai/events/16071-how-scientists-are-working-to-solve-the-bird-flu-outbreak-ap-news.md) | -0.3% | +12.9% |
| MILK | 2024-04-27 | [Bird flu virus has been spreading among US cows for months, RNA reveals \| Nature](https://feedsoft.ai/events/16100-bird-flu-virus-has-been-spreading-among-us-cows-for-months-rna-reveals-nature.md) | +18.6% | +19.7% |
| MILK | 2026-05-05 | [Dairy farms in California may transmit H5N1 virus through multiple sources](https://feedsoft.ai/events/15913-dairy-farms-in-california-may-transmit-h5n1-virus-through-multiple-sources.md) | +0.4% | -0.2% |

## Sources

- myvetcandy.com: https://www.myvetcandy.com/news/2026/11/12/farmworker-union-warns-h5n1-bird-flu-cases-may-be-going-undetected-as-dairy-outbreak-spreads

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