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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	3963	2.04
47	32	2	90	12	3954	3.44
48	42	12	50	12	4552	2.55
49	32	10	112	22	4701	3.74
50	49	19	115	27	4976	4.22
51	60	26	160	49	5551	5.31
52	55	18	259	76	6983	5.84
01	63	45	317	98	6412	8.16
02	141	117	537	141	6914	13.54
03	173	158	633	182	6816	16.81
04	151	285	1072	271	8107	21.94
05	188	479	1888	482	10801	28.12
06	149	583	2039	571	10722	31.17
07	47	379	1432	482	6889	33.97