A person in Louisiana has contracted the nation's first severe case of bird flu after the virus mutated inside their body, ...

Here’s what to know about the United States’ first confirmed severe case of H5N1 avian influenza—and how to protect yourself.

Most human cases of bird flu in North America have been mild, a fact that’s underscored by a new study of the first 46 ...

Teen's recovery from H5N1 bird flu raises concerns after genetic mutations suggest virus could become more dangerous to ...

The Centers for Disease Control and Prevention (CDC) has confirmed the country’s first “severe” case of bird flu in humans.

The workers experienced mild respiratory symptoms and conjunctivitis (pink eye), according to the Colorado Department of ...

A Canadian teen's severe bird flu infection has raised alarms about the rising threat of H5N1. With symptoms like fever, ...

While bird flu cases have been rampant among wild birds ... the individual was hospitalized in critical condition with severe respiratory symptoms, according to a Louisiana official.

The U.S. reported its first severe human case of bird flu on Wednesday in a Louisiana resident who is hospitalized in ...

Doctors say the case of a teen left in critical condition shows H5N1 "can cause severe human illness." Mutations in the virus are deepening concerns about the spread of H5N1.

On Wednesday the CDC said that a patient has been hospitalized with a severe case ... bird flu may include fever, feeling feverish, having chills, eye redness, eye irritation, as well as ...