INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2006 - 2007 Season
Week A(H1N1) & A(H1N2) A(H3N2) A(Unk) B Total # Tested % Positive
40 13 2 20 12 1881 2.5
41 20 1 24 6 1957 2.6
42 9 2 27 12 2326 2.1
43 13 1 38 11 2516 2.5
44 25 1 62 26 2942 3.9
45 13 0 67 31 3239 3.4
46 14 0 59 17 2846 3.2
47 13 1 66 12 2529 3.6
48 15 1 61 29 2441 4.3

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