Four years ago, as attention locked onto COVID-19, another virus began circling the globe. A major outbreak of a new strain of bird flu—formally named influenza A virus subtype H5N1—has since killed ...

At the start of 2025, health officials in Louisiana reported the first U.S. bird flu death and experts questioned whether highly pathogenic avian influenza A (H5N1) could lead to the next pandemic. A ...

The variant of bird flu that killed a Louisiana resident has now been found in dairy cows. Until now, the human cases of bird flu traced to cattle have been mild, mostly eye infections. But the U.S.

Post-2020, highly pathogenic avian influenza H5 circulation is characterised by spatially expanded ecological suitability, ...

(NewsNation) — As the winter season fully kicks in, it’s expected that people across the country will get sick. Except this time, a new variant of the influenza virus has sounded the alarm — and ...

Proteins and genetic material from H5N1 influenza viruses have been found in pasteurized milk in the United States, but a study from St. Jude Children's Research Hospital shows those inactive viral ...