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 4 181 0 73 151 5148 7.94
45 0 5 269 0 114 231 6134 10.09
46 0 8 366 0 210 265 6365 13.37
47 0 8 589 0 406 362 7112 19.19
48 0 17 984 0 532 497 8876 22.87
49 0 36 1729 0 979 678 11461 29.86
50 0 49 2549 0 1141 822 13863 32.9
51 0 54 3490 0 1251 1096 15629 37.69
52 0 78 3671 0 1531 1162 16878 38.17
01 0 84 3640 0 1612 1089 17767 36.16
02 0 96 3888 0 1719 1129 19543 34.96
03 0 113 3116 0 1597 1067 18868 31.23
04 0 128 2379 0 1503 1084 16854 30.22
05 0 122 1882 0 951 1074 14773 27.27
06 0 119 1179 0 706 1052 13248 23.07
07 0 69 791 0 487 1029 11450 20.75
08 0 73 539 0 364 1076 10345 19.84
09 0 47 364 0 289 1031 9388 18.44
10 0 48 254 0 201 1005 8428 17.9
11 0 12 87 0 152 646 5526 16.27

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