Avian Influenza: What you need to know

H5N1, also known as bird flu, poses risks to cats. Here’s what you need to know about transmission, prevention, and Anti-Cruelty’s response.
 

What is H5N1? 

H5N1, or avian influenza, is a highly contagious virus that primarily affects domestic and wild birds. In 2024, the virus was detected in mammals in over 20 U.S. states, including 56 documented cases in cats. While it poses a severe threat to poultry and birds, infections in mammals remain less common but concerning.
 

How does it spread to cats? 

H5N1 can spread to cats through contaminated raw poultry products, which may be found in some pet foods. Outdoor cats are also at risk if they hunt and consume infected wild birds. While no vaccines exist for cats, owners can reduce risk by keeping cats indoors and avoiding raw food diets.
 

What is Anti-Cruelty doing to help? 

Anti-Cruelty is raising awareness about H5N1 and advising cat owners to keep their pets indoors and avoid feeding raw poultry or dairy products. We’re also closely monitoring the health of shelter cats, isolating symptomatic felines, and following guidelines from the CDC and other authorities to minimize risks. 

Stay informed 

Anti-Cruelty remains committed to monitoring and mitigating the impact of H5N1 in Chicagoland. Stay informed, take precautions, and help protect your pets and the community.