H5 Bird Flu

H5N1 2.3.4.4b bird flu is a high pathogenicity (HPAI) Bird Flu. It has spread globally from Asia since 2021 across Europe to North and South America, Antarctica and has recently arrived in Australia in June 2026. 

Millions of wild animals have died worldwide due to H5 Bird Flu including 500 different wild bird and over 80 wild mammal species. Some bird species, like chickens and turkeys, are highly susceptible and can experience up to 100% mortality. Many marine mammals have died from the infection It is unclear how H5 will impact native Australian bird and animal species.

Below are some answers to frequently asked questions about the H5 bird flu.

Reporting suspected H5 infection

Human Cases - Dept of Health 1300 651 160 (24/7)

Emergency Animal Disease Hotline 1800 675 888