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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	77	4238	3.75
41	0	7	66	0	27	96	4607	4.25
42	0	4	120	0	47	118	4787	6.04
43	0	3	140	0	51	134	4645	7.06
44	0	3	166	0	73	128	4462	8.29
45	0	3	205	0	93	164	4980	9.34
46	0	5	174	0	155	160	3742	13.2