Hungary and Italy have both reported an outbreak of the severe H5N1 avian influenza virus in the first such cases in the ...

Two samples taken from dead tigers in Vietnam have tested positive for H5N1 bird flu virus, local media reported.

Hospital workers reported respiratory symptoms after encountering a Missouri patient with H5N1 who had not been exposed to ...

Two samples taken from dead tigers in southern Vietnam have tested positive for the H5N1 bird flu virus, local media reported ...

Forty-seven tigers, three lions and a panther have died in zoos in south Vietnam due to the H5N1 bird flu virus, state media ...

Tigers at resort in Dong Nai province died after being fed sick chicken, additional deaths reported in other locations.

The fatalities took place in two zoos near Ho Chi Minh City. Experts say the big cats likely consumed meat from infected ...

Further testing could confirm whether the patient, who has since recovered, actually had bird flu despite testing positive.

Dozens of tigers have died in zoos in south Vietnam after a bird flu outbreak, according to state media. Three lions and a ...

U.S. health officials have run into obstacles in their efforts to determine whether a Missouri person infected with H5N1 bird ...

Hungary and Italy have both reported an outbreak of the severe H5N1 avian influenza virus in the first such cases in the ...