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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	4175	3.86
44	0	10	64	0	68	97	4643	5.15
45	0	13	66	0	94	162	5365	6.24
46	0	23	111	0	106	230	5618	8.37
47	0	13	130	0	156	259	5467	10.21
48	0	34	177	0	133	248	5760	10.28
49	0	42	288	0	124	297	5660	13.27
50	0	79	465	0	267	512	6893	19.19
51	0	88	663	0	421	626	7153	25.14
52	0	174	817	0	491	607	8081	25.85
01	0	287	987	0	525	535	9095	25.66
02	0	462	1049	0	545	484	8506	29.86
03	0	633	1108	0	585	554	8724	33.01
04	0	423	718	0	530	373	6209	32.92