What is Bird Flu (Avian Influenza)?

Bird flu (avian influenza) is a type of influenza virus that primarily affects birds, but can occasionally infect humans, usually through close contact with infected birds or heavily contaminated environments. Human infection remains rare, but can cause symptoms ranging from mild, flu-like illness to severe respiratory disease.

Public health authorities monitor bird flu outbreaks closely, since certain strains carry pandemic potential if they were to develop the ability to spread easily between people. For most people, the risk from bird flu remains very low, particularly without direct contact with birds.