# What You Should Know About Avian Influenza A (H5N1) | ASM.org

> Avian influenza H5N1 clade 2.3.4.4b has circulated in wild birds in Europe, Asia and Africa since at least 2020 and reached North America in late 2021. The virus caused unusually high mortality in endangered South American seabirds and marine mammals starting in early 2023.

- Date: 2024-06-24 · published 2024-06-24T12:00:00.000Z
- Category: disease · region Global · magnitude low
- Page: https://feedsoft.ai/events/16082-what-you-should-know-about-avian-influenza-a-h5n1-asm-org
- 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

This is background on the virus's wildlife spread rather than a new supply shock, so it has little direct effect on feed or meat prices.

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| HOGS | 2025-06-18 | [Four reasons why avian influenza should be on your radar](https://feedsoft.ai/events/15990-four-reasons-why-avian-influenza-should-be-on-your-radar.md) | +2.3% | -2.7% |
| HOGS | 2024-05-16 | [Influenza: Avian](https://feedsoft.ai/events/16095-influenza-avian.md) | -0.7% | -3.0% |
| HOGS | 2023-07-26 | [Questions and answers on avian influenza A(H5N1) - PAHO/WHO \| Pan American Health Organization](https://feedsoft.ai/events/16166-questions-and-answers-on-avian-influenza-a-h5n1-paho-who-pan-american-health.md) | +1.1% | -15.0% |
| HOGS | 2021-11-22 | [Bird flu: What is avian influenza, how does it spread, which viruses infect humans and should we be worried? - ABC News](https://feedsoft.ai/events/16327-bird-flu-what-is-avian-influenza-how-does-it-spread-which-viruses-infect-humans.md) | -2.5% | +4.1% |
| 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% |
| SBM | 2025-06-18 | [Four reasons why avian influenza should be on your radar](https://feedsoft.ai/events/15990-four-reasons-why-avian-influenza-should-be-on-your-radar.md) | -2.9% | -5.5% |
| SBM | 2024-05-16 | [Influenza: Avian](https://feedsoft.ai/events/16095-influenza-avian.md) | +1.5% | -3.6% |
| SBM | 2023-07-26 | [Questions and answers on avian influenza A(H5N1) - PAHO/WHO \| Pan American Health Organization](https://feedsoft.ai/events/16166-questions-and-answers-on-avian-influenza-a-h5n1-paho-who-pan-american-health.md) | +0.4% | -9.3% |

## Sources

- asm.org: https://asm.org/articles/2024/june/what-you-should-know-about-avian-influenza-a-h5n1

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