Avian influenza H5N1 infection in humans has spread to seven U.S. states, growing from 46 cases last week to 52 cases this week.

NBC Universal, Inc. The bird flu virus hasn’t yet spread from person to person, the Centers for Disease Control and Prevention said Thursday, releasing findings from a monthslong probe into a patient ...

As H5N1 bird flu spreads among California dairy herds and southward-migrating birds, health officials announced Friday six ...

Blood testing conducted by the Centers for Disease Control and Prevention has confirmed that one person in Missouri with no known exposure to cattle or poultry contracted H5N1 bird flu in August ...

Opens in a new tab or window There's no evidence of human-to-human transmission of H5N1 bird flu among patients and healthcare workers in Missouri, the CDC said during a press briefing today.

Blood tests of several people who were in contact with a patient in Missouri who caught H5N1 bird flu without any known exposure to infected animals reveal that at least one of them — a person ...

H5N1, or bird flu, has been spreading among farm animals, wild birds and other animals and has infected 31 people, mostly farmworkers, in the U.S. After the Missouri patient fell ill, several ...

Two people sharing a home caught the virus without known exposure to animals. More than 30 human cases have been reported in the United States. By Apoorva Mandavilli and Emily Anthes A Missouri ...

As H5N1 bird flu continues to spread wildly among California dairy herds and farmworkers, federal health officials on Thursday offered some relatively good news about Missouri: The wily avian ...

The bird flu virus hasn’t yet spread from person to person, the Centers for Disease Control and Prevention said Thursday, releasing findings from a monthslong probe into a patient in Missouri who was ...