INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2013 - 2013 Season
Week A(H1) A(2009 H1N1) A(H3) H3N2v A(unable to sub-type) A(Subtyping not performed) B Total # Tested % Positive
21 0 18 88 0 0 69 261 3750 11.63
22 0 16 85 0 0 56 229 3370 11.45
23 0 16 48 0 0 44 200 3062 10.06
24 0 9 63 0 0 56 186 2924 10.74
25 0 3 38 0 0 30 106 2540 6.97
26 0 3 26 0 0 22 118 2273 7.44
27 0 5 16 0 0 18 58 1973 4.92
28 0 4 36 1 0 15 43 2045 4.84
29 0 0 18 0 0 11 48 2083 3.7
30 0 2 49 9 0 13 33 2038 5.2
31 0 1 65 95 0 11 35 2144 9.65
32 0 3 64 73 0 12 27 2294 7.8
33 0 6 69 52 0 14 29 2483 6.85
34 0 7 48 15 0 21 26 2677 4.37
35 0 1 36 12 0 15 26 2699 3.33
36 0 1 34 5 0 16 37 2868 3.24
37 0 0 19 2 0 11 50 3199 2.56
38 0 4 42 0 0 17 42 3480 3.02
39 0 7 34 0 0 16 58 3498 3.29
40 0 3 27 0 0 9 36 2870 2.61

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