Influenza H5N1 in mammals – Sources of information on disease outbreaks in animals

Influenza H5N1 in mammals

• Influenza A (H5N1) infection in mammals: suspect case definition and diagnostic testing criteria
• Housing measures introduced in parts of Yorkshire and the East to protect poultry and other captive birds
• Bird flu (avian influenza): latest situation in England
• BVA, BVZS, BVPA and BSAVA Avian influenza (AI) advice for vets dealing with wild birds and backyard poultry

• Influenza A (H5N1) of avian origin in domestic livestock in the USA 
• Detections of highly pathogenic avian influenza in mammals 

• HPAI confirmed cases in livestock
• Avian influenza in pets and backyard flocks
• Detection of highly pathogenic Avian Influenza (H5N1) in dairy herds: Frequently asked questions

• Global strategy for the prevention and control of high pathogenicity Avian Influenza (2024–2033)
• High pathogenicity avian influenza (HPAI) in cattle
• WAHIS: World Animal Health Information System
• Influenza: A(H5N1)
• European Food Safety Authority et al. (2024) Avian influenza overview March-June 2024. EFSA Journal, 22 (7), no. e8930. https://doi.org/10.2903/j.efsa.2024.8930

• Lyons, K. et al. (2025) Assessing stakeholder inclusion within high pathogenicity avian influenza risk governance strategies in the United Kingdom and United States. Frontiers in Veterinary Science, 12. https://doi.org/10.3389/fvets.2025.1547628
• Public health resources for veterinarians and veterinary staff handling animals with HPAI A (H5N1) virus infection on dairy farms
• Interim guidance for employers to reduce exposure to novel influenza A (such as H5N1 bird flu) for people working with or exposed to animals
• Highly pathogenic avian influenza A (H5N1): Guidance for veterinarians assessing HPAI H5N1 in domestic felines
• Considerations for veterinarians: Evaluating and handling of cats potentially exposed to highly pathogenic avian influenza A (H5N1) virus
• FDA outlines ways to reduce risk of HPAI in cats.