In this April 3, 2013 photo, workers disinfect at Sanguantang live poultry wholesale market in Shanghai, China. After a new and lethal strain of bird flu emerged in Shanghai two weeks ago, the government of China's bustling financial capital responded with live updates on a Twitter-like microblog. It's a starkly different approach than a decade ago, when Chinese officials silenced reporting as a deadly pneumonia later known as SARS killed dozens in the south. (AP Photo/Eugene Hoshiko)
China bird flu crisis
The H7N9 flu has infected 108 people in China since it was first detected in March, according to the World Health Organization. The new strain of avian flu has killed 22 people among confirmed cases.