H5N1 Bird Flu Alert: What You Need to Know About Avian Influenza Risks and Prevention in 2024

H5N1 Bird Flu Alert: What You Need to Know About Avian Influenza Risks and Prevention in 2024

Published: December 15, 2025

Duration: 4:59

Title: Avian Flu 101: Your H5N1 Bird Flu Guide

You’re listening to Avian Flu 101: Your H5N1 Bird Flu Guide.

Let’s start simple. Bird flu is an infection caused by influenza A viruses that mainly live in birds. H5N1 is one specific “flavor” of that virus. The H and the N are like jersey numbers on the virus’s surface proteins: H for hemagglutinin, N for neuraminidase. Different number combinations mean different subtypes.

In most birds, H5N1 attacks the breathing and digestive systems. In some flocks it’s called “highly pathogenic” be...