What is bird flu and how are we protecting people against it in the UK?
![A group of chickens eating feed from a container](https://ukhsa.blog.gov.uk/wp-content/uploads/sites/33/2024/12/chickens_medium_blog-1024x576.jpg)
This blog post was reviewed and updated in January 2025. Avian influenza (bird flu) is an infectious disease that affects birds, caused by the influenza A virus. Birds are the hosts for a variety of influenza virus subtypes, particularly waterfowl …