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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	1983	2.4
41	20	1	26	6	2054	2.6
42	9	2	27	12	2453	2.0
43	13	1	40	10	2718	2.4
44	25	1	66	26	3129	3.8
45	14	0	78	31	3456	3.6
46	20	0	67	26	3656	3.1
47	15	1	77	14	3466	3.1
48	32	1	87	42	4349	3.7
49	44	2	95	40	3843	4.7
50	82	5	214	57	4248	8.4
51	72	1	77	45	1926	10.1