A Perspective on Multiple Waves of Influenza Pandemics
Figure 1
The H1N1 positive tests reported to the CDC in the United States from April 24, 2009 (week 17) to November 27, 2009 (week 48).
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The H1N1 positive tests reported to the CDC in the United States from April 24, 2009 (week 17) to November 27, 2009 (week 48).