With 46 U.S. cases and alarming signs of the virus crossing species, experts warn of unpredictable risks if human-to-human ...

A teenager has been left in critical condition after contracting the first presumptive human case of avian influenza in ...

A teenager in Canada is critically ill with the country's first human case of H5N1 bird flu. Health officials aren't sure how ...

Although activity is still considered minimal, cases have ticked up a notch compared to the week before. One business owner ...

Bird flu H5N1 has infected dozens of people in the U.S. this year. Could it be the next pandemic? Experts explain the threat ...

Woodland Park Zoo is ramping up safety measures after a red-breasted goose died in what is the zoo’s first suspected case of ...

British Columbia health officials have yet to identify a likely source of the infection, though none of the teen's contacts ...

British Columbia health officials said on Saturday the province had detected Canada's first human case of H5 bird flu in a ...

The first presumed human case of avian influenza (H5N1, or bird flu) has been reported in Canada. An infectious disease ...

A teenager in British Columbia is critically ill with Canada's first case of the H5N1 bird flu strain. While the virus has ...

A teen in Canada may be the first person to catch an H5 bird flu virus within the country. Health officials are now working ...

A Canadian teenager infected with bird flu — that country’s first case involving a locally acquired infection — is in ...