INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2008 - 2009 Season
Week
A(H1)
A(H3)
A(Unk)
B
Total # Tested
% Positive
40
2
0
9
5
2379
0.67
41
4
4
6
5
2341
0.81
42
12
3
14
4
2349
1.4
43
14
2
22
13
2364
2.16
44
9
0
20
3
2315
1.38
45
8
2
23
7
2332
1.72
Return to Current Report
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