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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	170	48	6312	5.54
01	165	26	279	82	6695	8.24
02	196	22	421	96	6787	10.83
03	340	44	620	186	7596	15.67
04	556	76	894	359	9009	20.92
05	674	52	1359	671	11461	24.05
06	811	63	1337	910	12471	25.03
07	813	65	1065	893	11470	24.73
08	664	58	993	1094	11675	24.06
09	491	54	876	1077	10358	24.12
10	311	54	613	959	8905	21.75
11	273	58	414	803	7871	19.67
12	186	32	259	529	6083	16.54
13	83	18	146	334	4063	14.3
14	39	11	87	122	2873	9.01