Figure 2. Genotyping and subtyping of influenza viruses, 2009−2010.

The influenza virus-positive samples collected during week 19 of 2009 through week 18 of 2010 were typed and subtyped using a multiplex RT-PCR and a multiplex Taqman probe-based real-time PCR as described in Materials and Methods. Surveillance data from the CNIC and from the US CDC [6], [7] are shown for reference.