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

Oregon confirms its first human bird flu case, the latest in dozens of cases in the U.S. this year. Experts discuss the ...

Colleagues, it's time to wake up and smell the coffee. Or, for a true reality check, just scan the Department of ...

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

Wastewater in several Californian cities, including San Francisco and Los Angeles, recently tested positive for bird flu. But ...

Reports this week of a teen in British Columbia who tested positive for H5 avian influenza has renewed attention on the virus ...

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

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

Officials say while certain birds from the infected flock were present at the fair, the first signs of infection in the flock ...

The National Microbiology Laboratory in Winnipeg confirmed the infection was indeed caused ... far to determine how the teenager contracted bird flu. He or she is too ill to answer questions ...

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

Pending confirmatory testing, this would mark Woodland Park Zoo’s first case of bird flu, a viral infection carried by wild ...