People sit near pigeons at a park in Shanghai where more than 30 human cases of bird flu have been reported.
Public health authorities in Taiwan have identified the first human case of a new type of bird flu seen outside China.
The development, while not unexpected, points to the potential spread of a new type of bird flu that has, according to the World Health Organization, sickened at least 108 people and been implicated in 22 deaths.
An H7N9 bird flu patient is escorted after his recovery and approval for discharge at a central China hospital on Friday.
Credit AFP / AFP/Getty Images
U.S. hospitals have been urged to be on the lookout for symptoms of bird flu among patients who have recently traveled to China, where a new strain of the virus has killed 17 people and infected more than 70.