INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2008 - 2009 Season
Week A(H1) A(Novel H1N1) A(H3) A(Could Not Subtyped) A(Unk) B Total # Tested % Positive
40 3 0 0 0 8 6 2606 0.65
41 4 0 4 0 8 6 2633 0.84
42 13 0 3 0 15 6 2746 1.35
43 22 0 0 0 24 14 3198 1.88
44 12 0 3 0 21 5 3320 1.23
45 32 0 2 0 23 11 3922 1.73
46 25 0 2 0 23 12 4146 1.5
47 27 0 1 0 31 23 4540 1.81
48 40 0 1 0 47 24 4636 2.42
49 43 0 6 0 57 14 5356 2.24
50 71 0 9 0 66 37 5788 3.16
51 73 0 19 0 108 56 6057 4.23
52 71 0 12 0 153 51 5830 4.92
53 115 0 19 0 171 48 6314 5.59
01 165 0 27 0 285 82 6700 8.34
02 198 0 22 0 423 97 6830 10.83
03 341 0 44 0 623 186 7601 15.71
04 558 0 77 0 898 359 9013 20.99
05 675 0 52 0 1359 672 11466 24.05
06 815 0 63 0 1367 916 12592 25.1
07 818 0 65 1 1068 894 11502 24.74
08 676 0 59 0 1003 1097 11728 24.17
09 534 0 57 0 882 1086 10492 24.39
10 371 0 63 0 638 1002 9267 22.38
11 354 0 63 0 429 874 8308 20.7
12 258 0 41 0 283 602 6947 17.04
13 109 0 25 0 165 433 5331 13.73
14 88 0 31 1 125 250 4709 10.51
15 37 0 28 0 74 166 4121 7.4
16 40 13 31 3 79 94 3606 7.21
17 486 757 553 197 372 549 21700 13.43
18 341 1200 364 162 802 285 20603 15.31
19 86 944 103 38 397 63 10036 16.25
20 24 1096 70 117 116 27 6469 22.41

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