A pigeon trap snaps into action in Shanghai.<br/> <br />Pigeons infected with the H7N9 virus were discovered in a food market in the city earlier in the week.<br/> <br />The virus has so far killed six people in China - and the government wants to make sure it isn't spreading through the pigeon population.<br/> <br />The outbreak has scared many residents.<br/> <br />"I'm very worried," says this woman. "I have a child. I'm very worried the disease could spread throughout Shanghai."<br/> <br />Fears like those have prompted a run on surgical masks and herbal remedies said to stave off the flu.<br/> <br />Despite the concerns, a leading health official said on Sunday that China could control the outbreak.<br/> <br />And the World Health Organization repeated that there is no evidence of transmission from human to human.
