INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2009 - 2010 Season
Week A(H1) 2009 A H1N1 A(H3) A(Could Not Subtyped) B Total # Tested % Positive
35 2 1505 12 37 1023 2 13211 19.54
36 1 1925 3 14 1375 9 15514 21.45
37 5 2188 1 22 1485 5 17007 21.79
38 4 2188 8 34 1417 13 16880 21.71
39 3 2810 6 54 1629 11 17178 26.27
40 0 3804 3 27 1890 13 18504 31
41 1 5098 0 40 2821 14 22066 36.14
42 0 5453 0 52 2742 21 19642 42.09

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