In 2009, H1N1 bird flu caused the first global flu pandemic in 40 years, with the first infections detected in California.

Authorities in Hawaii are warning residents who attended a local pet fair to watch for symptoms of avian influenza after a ...

A teenager diagnosed with bird flu in British Columbia is the first domestically acquired human case of H5N1 avian influenza, ...

A Canadian teenager is currently in critical condition after contracting a suspected case of H5N1 bird flu, a British ...

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

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

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

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 ...

A British Columbia teen who contracted Canada's first known human case of H5 bird flu has deteriorated swiftly in recent days ...

A teenager in British Columbia was hospitalized in critical condition with the disease, and officials were working to find ...

The particular variant of H5N1 circulating among birds in British Columbia and the north-western US appeared over the past ...