# Oregon Confirms First Case Of Bird Flu In Dairy Cattle In Morrow County, Becoming 22nd U.S. State Affected

> Oregon confirmed its first highly pathogenic avian influenza (H5 clade 2.3.4.4b) detection in a commercial dairy herd in Morrow County. The herd was quarantined after routine National Milk Testing Strategy surveillance, and Oregon becomes the 22nd U.S. state with bovine infections. Officials say commercial pasteurized milk remains safe.

- Date: 2026-11-13 · published 2026-11-14T00:13:00.668Z
- Category: disease · region US · magnitude low
- Page: https://feedsoft.ai/events/98609-oregon-confirms-first-case-of-bird-flu-in-dairy-cattle-in-morrow-county
- Commodities: [Milk (Class III)](https://feedsoft.ai/c/MILK.md)

## Why it matters

Dairy herd infections add to supply risk for milk output and can hit dairy product flows, though a single herd in one state is a limited shock for milk and feed demand. Market effects are likely modest unless detections spread to major dairy regions.

## 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 | 2026-03-20 | [Why We Must Vaccinate US Dairy Cattle Against HPAI H5N1 \| The Journal of Infectious Diseases \| Oxford Academic](https://feedsoft.ai/events/15928-why-we-must-vaccinate-us-dairy-cattle-against-hpai-h5n1-the-journal-of.md) | +0.1% | +4.5% |
| 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 | 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 | 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% |

## Sources

- en.edairynews.com: https://en.edairynews.com/oregon-confirms-first-case-of-bird-flu-in-dairy-cattle-in-morrow-county-becoming-22nd-u-s-state-affected/

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