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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	2257	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	3425	2.07
45	13	10	47	10	3677	2.18
46	22	4	55	0	3964	2.04
47	32	2	90	12	3954	3.44
48	42	12	50	12	4552	2.55
49	32	10	112	22	4702	3.74
50	49	19	115	27	4977	4.22
51	67	27	160	50	5566	5.46
52	65	20	259	81	7016	6.06
01	74	51	316	104	6450	8.45
02	162	126	535	157	7020	13.96
03	194	180	709	200	7254	17.69
04	199	328	1179	319	8768	23.1
05	232	564	2163	587	12139	29.21
06	221	745	2539	779	13376	32.03
07	168	670	2273	880	12510	31.9
08	148	785	2288	1139	14379	30.32
09	96	626	1662	1057	12461	27.61
10	25	270	1112	829	10319	21.67
11	39	178	526	452	5432	22