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 6365 13.37
47 0 8 589 0 407 362 7113 19.2
48 0 17 983 0 532 497 8875 22.86
49 0 36 1729 0 979 678 11461 29.86
50 0 49 2548 0 1141 822 13862 32.9
51 0 54 3488 0 1251 1096 15627 37.68
52 0 77 3667 0 1531 1160 16869 38.15
01 0 82 3620 0 1612 1084 17701 36.14
02 0 93 3863 0 1715 1122 19469 34.89
03 0 113 3091 0 1596 1054 18774 31.18
04 0 127 2349 0 1477 1048 16558 30.2
05 0 122 1861 0 895 1025 14198 27.49
06 0 112 1119 0 668 984 12597 22.89
07 0 53 640 0 443 869 10163 19.73
08 0 39 244 0 322 683 7609 16.93

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