# Bird flu spreads to mammals, fears of human transmission

> Reports say H5N1 bird flu has spread to mammals, including farmed dairy cows and sheep that have close contact with people. Officials and researchers have raised fears that the virus could eventually transmit between humans.

- Date: 2025-03-24 · published 2025-03-24T12:00:00.000Z
- Category: disease · region Global · magnitude low
- Page: https://feedsoft.ai/events/16013-bird-flu-spreads-to-mammals-fears-of-human-transmission
- 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

Spread into farmed mammals raises the risk of disruption to livestock and poultry supply chains, which could affect feed demand over time. The immediate price impact is limited without confirmed human-to-human transmission.

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| HOGS | 2019-11-28 | [Swine fever raises fears of bird flu pandemic](https://feedsoft.ai/events/55942-swine-fever-raises-fears-of-bird-flu-pandemic.md) | +0.7% | +7.9% |
| HOGS | 2023-08-04 | [Fears for human cases of avian influenza](https://feedsoft.ai/events/16165-fears-for-human-cases-of-avian-influenza.md) | -0.5% | -16.8% |
| HOGS | 2019-11-25 | [Swine fever raises fears of bird flu pandemic - Asia & Pacific](https://feedsoft.ai/events/55940-swine-fever-raises-fears-of-bird-flu-pandemic-asia-and-pacific.md) | -2.8% | +6.8% |
| HOGS | 2025-04-07 | [Avian flu spreads to cows and people \| College of Veterinary Medicine](https://feedsoft.ai/events/16008-avian-flu-spreads-to-cows-and-people-college-of-veterinary-medicine.md) | -1.9% | +4.4% |
| HOGS | 2017-01-26 | [Proliferation of Bird Flu Outbreaks Raises Risk of Human Pandemic \| Scientific American](https://feedsoft.ai/events/72892-proliferation-of-bird-flu-outbreaks-raises-risk-of-human-pandemic-scientific.md) | +2.5% | +6.2% |
| SBM | 2020-01-03 | [Bird flu outbreak spreads in Poland - 9News](https://feedsoft.ai/events/54970-bird-flu-outbreak-spreads-in-poland-9news.md) | -1.5% | -3.2% |
| SBM | 2023-08-04 | [Fears for human cases of avian influenza](https://feedsoft.ai/events/16165-fears-for-human-cases-of-avian-influenza.md) | -3.8% | -6.3% |
| SBM | 2025-04-07 | [Avian flu spreads to cows and people \| College of Veterinary Medicine](https://feedsoft.ai/events/16008-avian-flu-spreads-to-cows-and-people-college-of-veterinary-medicine.md) | +5.1% | +1.6% |

## Sources

- reuters.com: https://www.reuters.com/business/healthcare-pharmaceuticals/bird-flu-spreads-mammals-fears-human-transmission-2025-03-24/

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