The agency, in its latest update released Thursday, said the mutations were not found in samples taken from wild birds, suggesting the virus changed over the course of the patient’s infection.

Scientists believe the mutations may allow the virus to better bind to receptors in the upper airways of humans.

The increased volume of intercepted drugs, including fentanyl, came as Alaska’s fatal overdose numbers continued to climb, a ...

A new mutation and the first severe case of H5N1 bird flu discovered in a human in Louisiana has raised concern among some ...

A backyard flock in Vermont was sickened with H5N1, agricultural officials said on Thursday, following other reports of bird ...

Two Baltimore municipal buildings will remain closed over the weekend after precautionary water testing found elevated levels of legionella bacteria.

New Hampshire Fire Marshal Sean Toomey said there were no carbon monoxide alarms found in the home, and he urged people to ...

A state investigation has found that a Falmouth day care provider gave the sleep aid melatonin to children without parents' consent, but the provider denies the allegations and plans to appeal. State ...

CDC weekly data shows that Tennessee has moved from high to very high influenza activity, making it one of the worst-hit ...