# Avian flu detections in dairy cows raise more key questions | CIDRAP

> USDA notified the World Organisation for Animal Health that the virus found in dairy cows is H5N1 from clade 2.3.4.4b, descended from the B3.2 genotype first seen in wild birds in November 2023. Investigators are still determining whether H5N1 was the only cause of an unexplained illness in affected herds in Texas and other locations.

- Date: 2024-03-27 · published 2024-03-27T12:00:00.000Z
- Category: disease · region US · magnitude medium
- Page: https://feedsoft.ai/events/16106-avian-flu-detections-in-dairy-cows-raise-more-key-questions-cidrap
- Commodities: [Milk (Class III)](https://feedsoft.ai/c/MILK.md)

## Why it matters

Confirmed spread through dairy herds raises biosecurity costs and adds uncertainty to milk output. Any herd losses would support milk prices.

## Read by commodity

- MILK: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| MILK | 2025-01-08 | [Avian flu keeps chugging along in birds, cows \| Agri-Pulse Communications, Inc.](https://feedsoft.ai/events/16035-avian-flu-keeps-chugging-along-in-birds-cows-agri-pulse-communications-inc.md) | -1.0% | -0.6% |
| MILK | 2024-03-26 | [Avian influenza found in US dairy cattle \| Agriculture Dive](https://feedsoft.ai/events/16111-avian-influenza-found-in-us-dairy-cattle-agriculture-dive.md) | -0.5% | -5.2% |
| MILK | 2024-05-08 | [Bird Flu Outbreak in Dairy Cows Is Widespread, Raising Public Health Concerns \| Infectious Diseases \| JAMA \| JAMA Network](https://feedsoft.ai/events/16090-bird-flu-outbreak-in-dairy-cows-is-widespread-raising-public-health-concerns.md) | +2.1% | +6.4% |
| MILK | 2024-03-25 | [Dairy cattle in Texas, Kansas test positive for bird flu \| AP News](https://feedsoft.ai/events/16105-dairy-cattle-in-texas-kansas-test-positive-for-bird-flu-ap-news.md) | -0.4% | -5.1% |
| MILK | 2026-06-15 | [Idaho dairies get more bird flu cases \| Capital Press](https://feedsoft.ai/events/15902-idaho-dairies-get-more-bird-flu-cases-capital-press.md) | +0.1% | -1.4% |

## Sources

- cidrap.umn.edu: https://www.cidrap.umn.edu/avian-influenza-bird-flu/avian-flu-detections-dairy-cows-raise-more-key-questions

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