# Oregon agriculture officials confirm state's first case of bird flu in dairy cattle

> The Oregon Department of Agriculture confirmed highly pathogenic avian influenza in a commercial dairy herd in Morrow County, the state's first dairy detection. The farm has been quarantined while officials investigate how the cows were infected, and no other affected dairies had been identified as of Thursday.

- Date: 2026-11-12 · published 2026-11-13T09:13:38.435Z
- Category: disease · region US · magnitude low
- Page: https://feedsoft.ai/events/97560-oregon-agriculture-officials-confirm-state-s-first-case-of-bird-flu-in-dairy
- Commodities: [Milk (Class III)](https://feedsoft.ai/c/MILK.md)

## Why it matters

A single dairy detection with no other affected herds so far is a limited supply risk, but spread among dairy cattle could reduce milk output and raise concern over dairy exports. Milk is pasteurized and diverted from the food supply, so the direct price effect is modest.

## 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 | 2025-03-12 | [Bird Flu's Varied Impacts on Egg and Milk Markets \| College of Agricultural and Environmental Sciences](https://feedsoft.ai/events/25604-bird-flu-s-varied-impacts-on-egg-and-milk-markets-college-of-agricultural-and.md) | -0.2% | -7.2% |
| 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 | 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% |

## Sources

- opb.org: https://www.opb.org/article/2026/11/12/oregon-first-case-bird-flu-dairy-cattle/

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