Influenza Updates - Winter 2011 PDF Print E-mail

Situation update

• There are signs of increasing influenza activity in parts of NSW and elsewhere in Australia.
• Three influenza virus strains (pandemic A(H1N1), seasonal A(H3N2) and B) circulated during the northern
hemisphere winter and all three are likely to also circulate in Australia during the 2011 winter flu season.
• Influenza viruses characterized to date are well matched to the three viruses in the current vaccine.