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 6135 10.09
46 0 8 366 0 210 265 6366 13.37
47 0 8 589 0 406 362 7112 19.19
48 0 17 978 0 532 497 8872 22.81
49 0 35 1708 0 979 677 11437 29.72
50 0 45 2536 0 1141 822 13848 32.81
51 0 50 3447 0 1251 1096 15581 37.51
52 0 73 3603 0 1532 1150 16788 37.87
01 0 80 3591 0 1609 1073 17642 36.01
02 0 89 3767 0 1583 998 18634 34.54
03 0 97 2957 0 1396 953 17512 30.85
04 0 100 2014 0 1240 811 14794 28.15
05 0 74 1026 0 640 622 10132 23.31

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