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INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2007 - 2008 Season

Week	A(H1)	A(H3)	A(Unk)	B	Total # Tested	% Positive
40	6	1	20	4	2253	1.38
41	12	3	22	1	2484	1.53
42	7	2	28	1	2862	1.33
43	7	1	27	4	3025	1.29
44	8	0	53	10	3401	2.09
45	6	9	47	9	3649	1.95
46	17	4	55	0	3939	1.93
47	34	2	89	12	3934	3.48
48	39	11	51	12	4462	2.53
49	29	10	112	21	4524	3.8
50	39	15	114	26	4734	4.1
51	59	23	156	45	5222	5.42
52	49	12	233	70	6463	5.63
01	49	21	261	70	5419	7.4
02	63	24	421	94	5453	11.04
03	38	38	190	63	2971	11.07