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  1. ... boy was thought to be the source of this pig flu pandemic . He got it because he lived near a pig farm. http://www.dailymail...

    分類:科學及數學 > 生物學 2009年06月02日

  2. ...endemic in humans, including the strain(s) responsible for the 1918 flu pandemic which killed 50–100 million people worldwide. Less virulent H1N1...

    分類:科學及數學 > 生物學 2009年05月07日