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	8	21	0	29	23	3667	2.21
41	0	14	35	0	43	31	4047	3.04
42	0	7	34	0	53	43	4174	3.28
43	0	14	53	0	47	49	4214	3.87
44	0	11	64	0	68	99	4652	5.2
45	0	14	66	0	94	162	5407	6.21
46	0	23	116	0	109	230	5656	8.45
47	0	12	143	0	156	259	5508	10.35
48	0	32	172	0	130	253	5799	10.12
49	0	45	301	0	125	296	5709	13.43
50	0	81	502	0	276	498	6985	19.43
51	0	94	706	0	426	634	7345	25.32
52	0	185	872	0	498	615	8329	26.05
01	0	308	1065	0	533	541	9568	25.57
02	0	523	1101	0	628	558	9509	29.55
03	0	800	1273	0	692	678	10253	33.58
04	0	1001	1406	0	858	905	11892	35.07
05	0	1142	1383	0	1029	1044	12648	36.35
06	0	1239	1396	0	1079	1090	13592	35.34
07	0	1334	1374	0	1312	1257	15046	35.07
08	0	976	1059	0	931	1065	12679	31.79
09	0	647	784	0	625	715	10239	27.06
10	0	288	386	0	307	365	6384	21.08