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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	3658	2.19
41	0	14	37	0	43	31	4053	3.08
42	0	7	33	0	53	42	4151	3.25
43	0	14	51	0	47	49	4172	3.86
44	0	10	64	0	68	97	4643	5.15
45	0	13	66	0	94	162	5360	6.25
46	0	23	111	0	106	230	5616	8.37
47	0	13	130	0	156	259	5467	10.21
48	0	34	177	0	133	248	5754	10.29
49	0	42	288	0	124	297	5658	13.27
50	0	79	463	0	267	512	6885	19.19
51	0	87	647	0	419	623	7113	24.97
52	0	173	791	0	471	593	7770	26.1
01	0	278	936	0	487	493	8370	26.21
02	0	406	918	0	543	420	7897	28.96
03	0	332	584	0	476	362	5823	30.12