Table 1.
Influenza Season | |||||||
---|---|---|---|---|---|---|---|
Viruses | 2009-10 | 2010-11 | 2011-12 | 2012-13 | 2013-14 | 2014-15 | 2015-16 |
Circulating strainsa | |||||||
A(H1N1)pdm09 | CA09a | CA09 | CA09 | CA09 | CA09 | CA09 | CA09 |
A(H3N2) | PE09 | PE09 | VI11 | VI11 | VI11, TE12 | SW13, HK14 | SW13, HK14 |
Influenza B | — | — | MA12(Y) | — | WI10(Y), MA12(Y), BR08(V) | MA12(Y), PH13(Y), BR08(V) | PH13(Y), BR08(V) |
Vaccine strains | |||||||
A(H1N1)pdm09 | BR07(H1) | CA09 | CA09 | CA09 | CA09 | CA09 | CA09 |
A(H3N2) | BR07(H3) | PE09 | PE09 | VI11 | VI11 | TE50 | SW13 |
Influenza B | BR08(V) | BR08(V) | BR08(V) | WI10(Y) | MA12(Y) | MA12(Y) | PH13(Y) |
The circulating strain in bold type indicates its antigenic property is significantly different from that of the contemporary global vaccine strain of the same subtype.