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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	4	2256	1.64
41	11	3	22	1	2486	1.49
42	10	2	28	1	2870	1.43
43	9	2	27	6	3033	1.45
44	8	0	53	10	3429	2.07
45	13	10	47	10	3676	2.18
46	22	4	55	0	3966	2.04
47	32	2	90	12	3956	3.44
48	42	12	50	12	4558	2.54
49	32	10	112	22	4705	3.74
50	49	19	115	27	4977	4.22
51	67	27	160	50	5569	5.46
52	68	20	259	81	7025	6.09
01	75	51	321	104	6499	8.48
02	162	126	538	157	7083	13.88
03	197	180	708	201	7322	17.56
04	200	328	1182	321	8848	22.95
05	241	562	2093	586	12051	28.89
06	243	750	2408	784	13176	31.76
07	182	712	2346	918	13015	31.95
08	160	844	2386	1197	15015	30.55
09	111	709	1792	1199	13718	27.78
10	59	528	1252	1109	12866	22.91
11	62	392	741	808	8914	22.47
12	37	214	480	635	6979	19.57
13	7	83	290	472	5107	16.68
14	0	13	166	197	2839	13.24