Lots of H1N1.
November 19, 2009
H1N1 is the predominant influenza virus currently circulating. The decision to postpone seasonal influenza vaccinations in favor of directing resources towards H1N1 seems to be the correct choice.
Oops. The image is really bad but you get the point. Blue is H1N1 and purple is seasonal influenza as a proportion of all influenza subtyping.
This is from the CDC for November 1 – 7, 2009.
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Seasonal flu will likely be more important later in the winter season.