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 69 0 10 79 4306 3.74
41 0 7 67 0 27 101 4670 4.33
42 0 4 121 0 47 127 4940 6.05
43 0 3 147 0 53 144 4821 7.2
44 0 4 183 0 75 156 5070 8.24
45 0 4 253 0 114 211 5889 9.9
46 0 6 303 0 216 226 5678 13.23
47 0 1 199 0 371 241 5342 15.2

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