# Many more cattle ranch workers infected with H5N1 than reported, says US farming union

> The United Farm Workers union says many more US farm workers have been infected with H5N1 bird flu than officially reported, with some showing very severe symptoms. Officially 73 people have been recorded as infected since 2024, and H5N1 is spreading across US cattle farms in dozens of states.

- Date: 2026-11-11 · published 2026-11-12T00:15:02.084Z
- Category: disease · region US · magnitude low
- Page: https://feedsoft.ai/events/94443-many-more-cattle-ranch-workers-infected-with-h5n1-than-reported-says-us-farming
- Commodities: [Milk (Class III)](https://feedsoft.ai/c/MILK.md)

## Why it matters

The story concerns worker health and reporting rather than herd losses or trade, so its direct effect on feed supply and prices is limited. Ongoing spread in dairy herds could eventually affect milk output.

## Read by commodity

- MILK: neutral

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| MILK | 2024-05-09 | [Nicaragua reports screwworm outbreak in cattle
						 \| The Cattle Site](https://feedsoft.ai/events/30190-nicaragua-reports-screwworm-outbreak-in-cattle-the-cattle-site.md) | +0.5% | +4.8% |
| 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 | 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% |
| 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 | 2024-05-23 | [Cattle Extended Rally on Wednesday - IBest Media](https://feedsoft.ai/events/6975-cattle-extended-rally-on-wednesday-ibest-media.md) | -0.4% | +6.8% |

## Sources

- telegraph.co.uk: https://www.telegraph.co.uk/global-health/science-and-disease/cattle-ranch-workers-h5n1-farming-union-pandemic/

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