INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2006 - 2007 Season
Week
A(H1N1) & A(H1N2)
A(H3N2)
A(Unk)
B
Total # Tested
% Positive
40
4
2
1
4
1379
0.8
41
14
1
0
3
1290
1.4
42
0
1
1
1
1164
0.3
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