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INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2011 - 2012 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	9	0	9	4	2330	1.07
41	0	0	5	0	0	2	1883	0.37
42	0	0	2	0	8	2	1479	0.81