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        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 4 2 1 4 1504 0.7
        41 14 1 0 3 1497 1.2
        42 2 4 1 7 1660 0.8
        43 3 0 2 1 1054 0.6

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