INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2009 - 2010 Season
Week A(H1) 2009 A H1N1 A(H3) A (unable to subtype) B Total # Tested % Positive
35 2 1523 12 45 1025 2 13173 19.81
36 1 1939 3 29 1377 9 15467 21.71
37 5 2178 1 40 1471 5 16732 22.11
38 4 2184 9 51 1398 12 16552 22.1
39 3 2786 6 54 1568 11 16629 26.63
40 0 3120 3 21 1750 18 16565 29.65
41 0 3378 0 30 1436 11 12943 37.51

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