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        INFLUENZA VIRUSES ISOLATED BY
        WHO/NREVSS Collaborating Laboratories
        2010 - 2011 Season
        Week A(H1) 2009 A H1N1 A(H3) A(unable to sub-type) A(Subtyping not performed) B Total # Tested % Positive
        40 0 9 15 0 28 21 3067 2.38
        41 0 12 30 0 39 24 2958 3.55
        42 0 4 22 0 7 15 1594 3.01

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