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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	3	0	8	6	2598	0.65
41	4	4	8	6	2632	0.84
42	13	3	15	6	2746	1.35
43	22	0	24	14	3198	1.88
44	12	3	21	5	3320	1.23
45	32	2	23	11	3920	1.73
46	25	2	23	12	4145	1.5
47	27	1	31	23	4540	1.81
48	40	1	46	24	4636	2.39
49	43	5	57	14	5355	2.22
50	71	9	66	37	5788	3.16
51	73	19	108	56	6057	4.23
52	71	12	152	51	5829	4.91
53	113	19	168	48	6312	5.51
01	165	26	281	82	6695	8.27
02	196	22	419	96	6785	10.8
03	340	44	620	186	7596	15.67
04	556	76	896	359	9009	20.95
05	674	52	1359	671	11461	24.05
06	811	63	1337	910	12471	25.03
07	812	65	1065	894	11472	24.72
08	664	58	993	1093	11675	24.05
09	491	54	875	1076	10357	24.1
10	310	54	613	958	8844	21.88
11	264	54	414	791	7668	19.86
12	163	31	245	475	5459	16.74
13	54	7	84	203	2829	12.3