Ducks are seen at a market in Nanjing, eastern China's Jiangsu province. The lethal bird flu virus in China displays worrying traits that warrant high vigilance, experts say. Photo: EPA Ducks are seen at a market in Nanjing, eastern China's Jiangsu province. The lethal bird flu virus in China displays worrying traits that warrant high vigilance, experts say. Photo: EPA
Ducks are seen at a market in Nanjing, eastern China's Jiangsu province. The lethal bird flu virus in China displays worrying traits that warrant high vigilance, experts say. Photo: EPA
H7N9 virus

Expert 'cautiously worried' over China's H7N9 bird flu strain

Topic |   H7N9 virus
Ducks are seen at a market in Nanjing, eastern China's Jiangsu province. The lethal bird flu virus in China displays worrying traits that warrant high vigilance, experts say. Photo: EPA Ducks are seen at a market in Nanjing, eastern China's Jiangsu province. The lethal bird flu virus in China displays worrying traits that warrant high vigilance, experts say. Photo: EPA
Ducks are seen at a market in Nanjing, eastern China's Jiangsu province. The lethal bird flu virus in China displays worrying traits that warrant high vigilance, experts say. Photo: EPA
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