The World Health Organization (WHO) on Saturday urged countries to be alert for unusual flu outbreaks after a deadly swine flu virus has claimed dozens of lives in Mexico and infected at least 11 people in the United States.
Swine Flu Pandemic Concern Grows after Outbreaks in N America
发帖者 ADuu | 4/26/2009 04:18:00 AM | blogger, dwg, Health | 0 评论 »
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