China Daily Investigators Look Beyond Birds for Origin of H7N9 Flu Strain New York Times BEIJING — China is investigating four possible cases of human-to-human transmission of a deadly bird flu that has killed 17 people, but so far there was “no sustained” evidence of transmission between people, the World Health Organization said on ... Experts unclear how China bird flu infects humans - USA Today USA TODAY Bird Flu's Fallout Hangs Over Eastern China Hotels, Fun Spots Ahead Of Long ...
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Investigators Look Beyond Birds for Origin of H7N9 Flu Strain - New York
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