Researchers at the US Centers for Disease Control and Prevention (CDC) have identified a few instances of asymptomatic human infection with avian influenza A (H5N1) virus. Widespread in wild birds ...

New Delhi — As a string of recent bird flu cases in U.S. cattle and poultry in several states draws warnings about the risks of possible widespread transmission to humans, India has had its ...

A 3-year-old girl in western Mexico has died after contracting bird flu in the country's first confirmed human case of the virus, Mexican health authorities said Tuesday. Mexico's Health Ministry said ...

A Mexico resident died in what officials say is the world's first death from a bird flu strain not previously detected in humans, the World Health Organization said Wednesday. The 59-year-old died on ...

Experts warn about the possibility of a new pandemic in 2025 as the H5N1 bird flu virus spreads across all 50 states, impacting cows at US dairy farms, leading to human infections and raising concerns ...

Two people sharing a home caught the virus without known exposure to animals. More than 30 human cases have been reported in the United States. By Apoorva Mandavilli and Emily Anthes A Missouri ...