Public Avoidance and the Epidemiology of novel H1N1 Influenza A
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In June 2009, the World Health Organization declared that novel influenza A (nH1N1) had reached pandemic status worldwide. The response to the spread of this virus by the public and by the public health community was immediate and widespread. Among the responses included voluntary avoidance of
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美国国家经济研究局创建时间：
2010-02-01
