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 5149 7.94
45 0 5 269 0 114 231 6134 10.09
46 0 8 366 0 210 265 6365 13.37
47 0 8 592 0 406 362 7115 19.23
48 0 17 992 0 532 497 8884 22.94
49 0 36 1739 0 979 678 11471 29.92
50 0 49 2572 0 1141 822 13885 33.01
51 0 54 3528 0 1251 1096 15667 37.84
52 0 78 3673 0 1532 1162 16881 38.18
01 0 84 3640 0 1653 1097 18219 35.53
02 0 96 3889 0 1767 1145 20013 34.46
03 0 113 3121 0 1624 1078 19228 30.87
04 0 129 2382 0 1528 1091 17139 29.93
05 0 122 1890 0 951 1076 14795 27.3
06 0 121 1181 0 706 1051 13259 23.07
07 0 69 798 0 486 1032 11468 20.8
08 0 74 548 0 363 1084 10398 19.9
09 0 49 392 0 289 1046 9499 18.7
10 0 60 298 0 201 1055 8899 18.14
11 0 39 190 0 187 943 8354 16.27
12 0 22 107 0 136 757 7164 14.27
13 0 16 36 0 88 415 4909 11.31

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