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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	153	51	5829	4.92
53	113	19	171	48	6237	5.63
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	1358	670	11460	24.03
06	812	63	1336	910	12471	25.03
07	812	64	1065	892	11464	24.71
08	660	57	914	1037	11150	23.93
09	488	52	817	1031	9912	24.09
10	296	52	595	930	8582	21.82
11	235	40	398	757	7214	19.82
12	130	18	180	394	4300	16.79