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INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2008 - 2009 Season

Week	A(H1)	A(H3)	A(Unk)	B	Total # Tested	% Positive
40	2	0	9	6	2557	0.66
41	4	4	6	6	2585	0.77
42	13	3	15	6	2713	1.36
43	22	0	24	14	3092	1.94
44	11	1	21	4	3267	1.13
45	28	3	23	10	3860	1.66
46	27	2	18	10	3723	1.53
47	24	0	36	22	4017	2.04
48	37	2	45	20	4037	2.58
49	33	3	58	13	4419	2.42
50	55	4	67	32	4489	3.52
51	22	3	55	23	3035	3.39