# Daily briefing: Bird flu is ‘everywhere’ on dairy farms | Nature

> A preprint study reports H5N1 avian influenza widespread on U.S. dairy farms, including in wastewater, milking parlour air and cow exhaled breath. The study has not been peer-reviewed. Researchers call for expanded biosecurity on dairy farms.

- Date: 2025-08-12 · published 2025-08-12T12:00:00.000Z
- Category: disease · region US · magnitude low
- Page: https://feedsoft.ai/events/15979-daily-briefing-bird-flu-is-everywhere-on-dairy-farms-nature
- Commodities: [Lean Hogs](https://feedsoft.ai/c/HOGS.md), [Chicken](https://feedsoft.ai/c/CHICKEN.md), [Soybean Meal](https://feedsoft.ai/c/SBM.md)

## Why it matters

Widespread virus on farms suggests ongoing transmission risk that could hit milk production. The preprint is not yet peer-reviewed and does not move prices directly.

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| HOGS | 2019-09-18 | [Flu on the farm \| Nature](https://feedsoft.ai/events/56955-flu-on-the-farm-nature.md) | -2.3% | +9.5% |
| HOGS | 2024-03-27 | [Bird flu discovered in U.S. dairy cows is ‘disturbing’ \| Science \| AAAS](https://feedsoft.ai/events/16112-bird-flu-discovered-in-u-s-dairy-cows-is-disturbing-science-aaas.md) | +1.0% | +12.1% |
| HOGS | 2024-10-01 | [GRAPHIC: Tracking the nation's bird flu outbreaks in dairy herds and poultry flocks](https://feedsoft.ai/events/16055-graphic-tracking-the-nation-s-bird-flu-outbreaks-in-dairy-herds-and-poultry.md) | +1.3% | -0.8% |
| HOGS | 2023-03-01 | [How to stop the bird flu outbreak becoming a pandemic \| Nature](https://feedsoft.ai/events/16205-how-to-stop-the-bird-flu-outbreak-becoming-a-pandemic-nature.md) | +0.1% | -6.0% |
| HOGS | 2024-06-25 | [What Can Farmers Learn From the Current Bird Flu Outbreak in Dairy Cows?](https://feedsoft.ai/events/16087-what-can-farmers-learn-from-the-current-bird-flu-outbreak-in-dairy-cows.md) | -0.8% | +2.6% |
| SBM | 2019-09-18 | [Flu on the farm \| Nature](https://feedsoft.ai/events/56955-flu-on-the-farm-nature.md) | +0.4% | +4.7% |
| SBM | 2024-03-27 | [Bird flu discovered in U.S. dairy cows is ‘disturbing’ \| Science \| AAAS](https://feedsoft.ai/events/16112-bird-flu-discovered-in-u-s-dairy-cows-is-disturbing-science-aaas.md) | -2.7% | +1.9% |
| SBM | 2024-10-01 | [GRAPHIC: Tracking the nation's bird flu outbreaks in dairy herds and poultry flocks](https://feedsoft.ai/events/16055-graphic-tracking-the-nation-s-bird-flu-outbreaks-in-dairy-herds-and-poultry.md) | -5.5% | -11.8% |

## Sources

- nature.com: https://www.nature.com/articles/d41586-025-02579-7

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