# Bird flu confirmed in Oregon dairy herd for the first time

> HPAI H5 clade 2.3.4.4b was confirmed by PCR in a dairy cattle herd in Oregon, the first reported case of the virus in cattle in that state, according to USDA APHIS. The herd had tested negative before this detection through routine surveillance under the National Milk Testing Strategy.

- Date: 2026-11-12 · published 2026-11-12T09:13:08.841Z
- Category: disease · region US · magnitude low
- Page: https://feedsoft.ai/events/95313-bird-flu-confirmed-in-oregon-dairy-herd-for-the-first-time
- Commodities: [Milk (Class III)](https://feedsoft.ai/c/MILK.md)

## Why it matters

Dairy cattle infections add a new source of disease risk to the US milk supply, though the detection is limited to one herd and officials say milk supply is safe. Price impact is likely minor unless spread to more herds grows.

## Read by commodity

- MILK: neutral

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| MILK | 2025-07-23 | [Current Situation: Bird Flu in Dairy Cows \| Bird Flu \| CDC](https://feedsoft.ai/events/15983-current-situation-bird-flu-in-dairy-cows-bird-flu-cdc.md) | -0.6% | +0.1% |
| MILK | 2024-04-03 | [Bird flu hits Texas dairy cows, hens, human as ducks migrate](https://feedsoft.ai/events/16103-bird-flu-hits-texas-dairy-cows-hens-human-as-ducks-migrate.md) | -4.7% | -5.0% |
| MILK | 2024-04-03 | [Bird flu outbreak in the US. What to know \| AP News](https://feedsoft.ai/events/16104-bird-flu-outbreak-in-the-us-what-to-know-ap-news.md) | -4.7% | -5.0% |
| 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 | 2025-12-19 | [Update: Genetic Sequencing Results for Wisconsin Dairy Herd Detection of Highly Pathogenic Avian Influenza \| APHIS](https://feedsoft.ai/events/15946-update-genetic-sequencing-results-for-wisconsin-dairy-herd-detection-of-highly.md) | +0.4% | -6.6% |

## Sources

- thedairysite.com: https://www.thedairysite.com/news/bird-flu-confirmed-in-oregon-dairy-herd-for-the-first-time

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