A genetic analysis suggested the bird flu virus mutated inside a Louisiana patient who contracted the nation's first severe case of the illness, the CDC said this week. Scientists believe the ...

Experts said at the time that the animals had been infected with bird flu, and warned that it was likely spreading between animals at the site. Testing by CDC revealed the virus may have mutated ...

This vaccine won’t protect you from bird flu, but the more people who are vaccinated, the lower the odds that a mutated bird flu virus capable of person-to-person spread will form.

A genetic analysis suggests the bird flu virus mutated inside a Louisiana patient who contracted the nation's first severe case of the illness, the U.S. Centers for Disease Control and Prevention ...

A genetic analysis suggests the bird flu virus mutated inside a Louisiana patient who contracted the nation’s first severe case of the illness, the U.S. Centers for Disease Control and Prevention said ...