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INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2010 - 2011 Season

Week	A(H1)	2009 A H1N1	A(H3)	A(unable to sub-type)	A(Subtyping not performed)	B	Total # Tested	% Positive
40	0	9	20	0	29	22	3574	2.24
41	0	14	37	0	43	31	3918	3.19
42	0	6	33	0	53	42	4043	3.31
43	0	14	50	0	47	49	4069	3.93
44	0	10	64	0	67	97	4556	5.22
45	0	13	66	0	94	162	5173	6.48
46	0	23	111	0	106	230	5482	8.57
47	0	13	128	0	155	258	5303	10.45
48	0	32	176	0	132	245	5504	10.63
49	0	38	282	0	122	291	5365	13.66
50	0	65	423	0	248	482	6422	18.97
51	0	67	618	0	404	575	6684	24.9
52	0	123	678	0	441	520	6911	25.5
01	0	40	164	0	317	185	4331	16.3