Early Adaptive Humoral Immune Responses and Virus Clearance in Humans Recently Infected with Pandemic 2009 H1N1 Influenza Virus
Figure 1
Influenza A specific IgM and IgG in serum samples from 2009 pandemic H1N1 infected patients and non-influenza related sources.
The units of IgM (a) and IgG (b) antibodies to influenza A in sera were determined by commercial ELISA kits. 131 pandemic 2009 H1N1 influenza infected samples, 100 samples collected in Sep. 2008, 3 acute RSV infected samples, 8 acute parainfluenza infected samples, 11 acute adenovirus infected samples and samples from 60 HIV+ subjects taken in Sep. 2009 and Jun. 2010 were also used in this experiment. In the box plot, the whiskers represent 10–90th percentile.