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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	11	2	20	5	2282	1.67
41	11	3	22	1	2509	1.47
42	11	2	28	2	2899	1.48
43	9	2	27	6	3061	1.44
44	8	0	53	11	3488	2.06
45	13	10	47	11	3752	2.16
46	22	4	55	2	4046	2.05
47	32	2	90	12	4016	3.39
48	42	12	50	12	4600	2.52
49	32	10	112	22	4796	3.67
50	49	19	115	27	5093	4.12
51	67	27	160	50	5701	5.33
52	68	20	260	82	6071	7.08
01	76	51	322	104	6639	8.33
02	162	130	540	159	7217	13.73
03	198	180	712	203	7501	17.24
04	202	333	1192	328	9029	22.76
05	241	586	2177	595	12417	28.98
06	247	767	2544	800	13773	31.64
07	189	725	2363	931	13227	31.81
08	169	871	2419	1211	15279	30.56
09	113	741	1862	1223	14014	28.11
10	60	566	1346	1148	13220	23.6
11	63	409	816	938	10029	22.2
12	44	328	527	718	7933	20.38
13	9	100	336	615	6279	16.88
14	11	51	224	396	4632	14.72
15	5	29	119	267	3748	11.21
16	0	14	49	127	2070	9.18