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	23	3677	2.2
41	0	14	37	0	43	31	4072	3.07
42	0	7	33	0	53	42	4169	3.24
43	0	14	51	0	47	49	4199	3.83
44	0	10	64	0	68	97	4670	5.12
45	0	13	66	0	94	162	5394	6.21
46	0	23	111	0	106	230	5638	8.34
47	0	15	130	0	154	259	5495	10.15
48	0	35	177	0	132	248	5786	10.23
49	0	42	288	0	124	298	5696	13.2
50	0	79	465	0	267	512	6910	19.15
51	0	88	665	0	420	627	7217	24.94
52	0	175	822	0	490	607	8123	25.78
01	0	288	991	0	525	541	9155	25.61
02	0	474	1058	0	621	531	9084	29.55
03	0	677	1161	0	663	623	9419	33.17
04	0	760	1183	0	770	733	10040	34.32
05	0	526	523	0	796	532	7511	31.65