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
68
0
10
74
4218
3.67
41
0
7
66
0
25
95
4580
4.21
42
0
4
105
0
46
92
4190
5.89
43
0
1
59
0
59
69
3036
6.19
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