INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2012 - 2013 Season
Week A(H1) A(2009 H1N1) A(H3) A(unable to sub-type) A(Subtyping not performed) B Total # Tested % Positive
40 0 3 71 0 10 79 4345 3.75
41 0 7 67 0 25 98 4716 4.18
42 0 4 128 0 47 121 5009 5.99
43 0 3 148 0 49 139 4913 6.9
44 0 4 180 0 73 151 5148 7.93
45 0 5 269 0 114 231 6136 10.09
46 0 8 365 0 211 265 6366 13.37
47 0 8 571 0 408 361 7095 19.01
48 0 17 968 0 532 497 8861 22.73
49 0 35 1707 0 979 677 11434 29.72
50 0 45 2519 0 1141 822 13830 32.73
51 0 50 3432 0 1251 1096 15560 37.46
52 0 71 3595 0 1533 1141 16763 37.83
01 0 72 3538 0 1614 1063 17536 35.86
02 0 82 3496 0 1581 945 18154 33.63
03 0 83 2383 0 1146 815 15444 28.66
04 0 54 1053 0 1034 560 10581 25.53

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