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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	13	2	20	12	1965	2.4
41	20	1	25	6	2041	2.5
42	9	2	27	12	2436	2.1
43	13	1	39	11	2684	2.4
44	25	1	66	27	3108	3.8
45	14	0	77	31	3424	3.6
46	15	0	67	26	3619	3.0
47	13	1	77	14	3330	3.2
48	24	1	86	38	4111	3.6
49	37	2	92	39	3403	5.0
50	39	1	152	40	2909	8.0