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 5147 7.93
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 3489 0 1251 1096 15628 37.69
52 0 78 3673 0 1531 1162 16880 38.18
01 0 84 3639 0 1612 1086 17766 36.14
02 0 96 3886 0 1719 1129 19540 34.95
03 0 113 3114 0 1597 1066 18865 31.22
04 0 128 2373 0 1503 1082 16834 30.21
05 0 122 1877 0 951 1073 14757 27.26
06 0 116 1159 0 706 1036 13181 22.89
07 0 69 765 0 486 985 11350 20.31
08 0 70 528 0 360 1020 10173 19.44
09 0 40 279 0 275 932 8824 17.29
10 0 28 106 0 158 529 5747 14.29

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