"Even sporadic cases of human-to-human transmission indicate a big change in the virus and suggest it is exploring new ...

Four more health-care workers who tended to a person hospitalized with H5N1 bird flu have revealed that they had respiratory ...

More than a month after a person in Missouri mysteriously fell ill with H5-type bird flu, investigators in the state are ...

Testing is ongoing among five health care workers and a household member exposed to the infected person who all came down ...

A possible cluster of bird flu infections has grown to include eight people, in what may be the first examples of ...

At least one household member and six healthcare workers who encountered the index case-patient are being investigated after ...

Australia’s chief vet has issued a stark warning that the spread of H5N1 Bird Flu to Australia could be “catastrophic” for ...

For influenza viruses, imperfection is a strength. They constantly mutate, producing new strains that challenge immune ...

The state government is preparing an emergency plan to combat a potentially catastrophic avian flu outbreak in Victoria.

California is at the center of the ongoing highly pathogenic avian influenza outbreak in dairy cattle, with 41 herds infected ...

The new H5N1 strain of bird flu spreading around the globe could put the future of Tasmanian devils at risk, Australia's ...

The National Foundation for Infectious Diseases Sept. 25 released a survey showing that less than one in five U.S. adults are ...