Avian influenza, or bird flu, is a broad term that refers to several types of influenza that normally infect birds. The bird flu that’s been making news in the United States is a virus called H5N1.

CLEVELAND, Ohio — Influenza A — a nasty virus that fueled the 2009 flu epidemic — is landing increasing numbers of Ohioans in the hospital. In Cuyahoga County, influenza A, one of four types ...

As the Centers for Disease Control and Prevention (CDC) explains, bird flu is a disease caused by the influenza A virus. At the same time, recent CDC data shows that seasonal influenza A is rising ...

The 2024-25 flu season continues to see elevated activity across the country, according to the U.S. Centers for Disease Control and Prevention. The influenza activity map shows 43 jursidictions ...