Bird flu also has spread to mammals, including dairy cows in the United States, and infected hundreds of people, raising concerns it could spark a new pandemic. Vaccines costly to develop and ...

By Sara Frueh Over the past three years, bird flu — caused by the avian influenza A (H5N1) virus — has extended its reach around the U.S. and across many species. The virus arrived in wild birds, but ...

The strain of bird flu that infected a Michigan dairy worker in May 2024 is capable of airborne transmission, according to new research from the CDC.

Still, the virus remains a cause of concern among health officials, given its particularly high mortality rate of around 50%. Bird flu doesn’t spread easily from person to person, but there’s ...

Bird flu isn't currently contagious between people, and no humans have gotten the current strain that's circulating from their cats. But the ability of a virus to jump from species to species ...

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 ...

Virus experts are issuing an “urgent call to action” about bird flu, warning about a rising threat from H5N1 and offering steps to prevent pandemic.

Scientists infected ferrets with that type of virus. Six of the infected ferrets were put in the same living space as six healthy ferrets, and within a week, all of them had bird flu, showing that ...

While the virus has had a high mortality rate in other countries, so far H5N1 has only caused one death in the U.S. and has not shown any signs of spreading easily from one person to another.

It is the stuff of science fiction: scientists tamper with a killer bird flu virus and create something much worse. But what has been created in a Rotterdam laboratory is not fiction. It is deadly ...

Bird flu continues to spread quickly through the U.S. farm system because that system is inherently a viral playground. Birds are kept in disgusting, crowded conditions that encourage viral spread.

The strain of bird flu that infected a Michigan dairy farmworker is capable of airborne transmission, amping up concerns about its potential to spark a new pandemic, according to a research letter ...