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	3671	2.21
41	0	14	35	0	43	31	4047	3.04
42	0	7	34	0	53	43	4177	3.28
43	0	14	53	0	47	49	4215	3.87
44	0	11	64	0	68	99	4664	5.19
45	0	14	66	0	94	162	5429	6.19
46	0	23	116	0	109	230	5671	8.43
47	0	12	143	0	156	259	5519	10.33
48	0	32	172	0	130	253	5818	10.09
49	0	45	308	0	125	299	5735	13.55
50	0	81	505	0	276	509	7062	19.41
51	0	94	709	0	426	640	7392	25.28
52	0	187	878	0	498	636	8406	26.16
01	0	312	1071	0	533	558	9663	25.6
02	0	524	1076	0	625	579	9533	29.41
03	0	808	1285	0	691	704	10372	33.63
04	0	1022	1414	0	876	937	12162	34.94
05	0	1168	1386	0	1049	1079	12960	36.13
06	0	1254	1410	0	1101	1133	13908	35.22
07	0	1375	1450	0	1318	1293	15376	35.35
08	0	1097	1160	0	934	1103	13304	32.28
09	0	862	936	0	696	809	11896	27.77
10	0	626	729	1	457	599	10095	23.89
11	0	389	491	2	344	450	8465	19.8
12	0	175	311	0	246	306	6769	15.33
13	0	65	106	0	101	127	3616	11.03