Highly pathogenic avian influenza viruses like H5N1, H5N6, and H7N9 pose an evolving global threat due to their capacity to infect birds, mammals, and occasionally humans, with sporadic outbreaks and limited treatment options.

Health officials are making a renewed call for vigilance against bird flu​, but some experts are puzzling over why reports of new human cases have stopped.

Over the past three years, avian influenza (H5N1) has spread around the U.S. and affected many species of birds and mammals, including humans. Experts at a recent webinar offered answers to common questions about the disease — how it spreads,

An 11-year-old boy has died in Cambodia’s fourth fatality from bird flu this year. The Health Ministry said tests confirmed the boy in the western province of Kampong Speu died Tuesday of H5N1 avian influenza.

A young boy in Cambodia is the fourth fatality from H5N1 in 2025. Globally, 10 human cases of bird flu have been confirmed this year, with a 50% fatality rate, WHO reports.