# USDA confirms Oregon's first case of HPAI in a dairy herd

> USDA's APHIS confirmed highly pathogenic avian influenza H5 in a dairy cattle herd in Oregon, the first case in that state. Oregon is the 22nd state infected since March 2024, and enhanced biosecurity is recommended for dairy farms.

- Date: 2026-11-11 · published 2026-11-12T15:12:31.543Z
- Category: disease · region US · magnitude low
- Page: https://feedsoft.ai/events/95715-usda-confirms-oregon-s-first-case-of-hpai-in-a-dairy-herd
- Commodities: [Milk (Class III)](https://feedsoft.ai/c/MILK.md)

## Why it matters

A single confirmed herd is a limited supply event with no evident price impact on dairy or feed markets beyond routine disease concern.

## Read by commodity

- MILK: neutral

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| 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 | 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 | 2025-12-19 | [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% |
| MILK | 2024-10-31 | [HPAI in California is a mixed bag for markets](https://feedsoft.ai/events/4684-hpai-in-california-is-a-mixed-bag-for-markets.md) | -1.6% | -2.0% |
| 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

- feedstrategy.com: https://www.feedstrategy.com/animal-health-veterinary/livestock-poultry-diseases/dairy-cow-health-disease/news/16425226/usda-confirms-oregons-first-case-of-hpai-in-a-dairy-herd
- feedstuffs.com: https://www.feedstuffs.com/dairy/oregon-reports-first-case-of-hpai-in-dairy-herd

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