INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2012 - 2013 Season
Week A(H1) A(2009 H1N1) A(H3) A(unable to sub-type) A(Subtyping not performed) B Total # Tested % Positive
40 0 3 67 0 10 76 4142 3.77
41 0 6 66 0 27 94 4504 4.29
42 0 4 116 0 49 117 4714 6.07
43 0 2 116 0 56 126 4300 6.98
44 0 2 69 0 65 91 3277 6.93

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