INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2010 - 2011 Season

Week	A(H1)	A(2009 H1N1)	A(H3)	A(unable to sub-type)	A(Subtyping not performed)	B	Total # Tested	% Positive
40	0	7	17	0	29	23	3698	2.06
41	0	13	38	0	43	35	4074	3.17
42	0	8	35	0	53	46	4217	3.37
43	0	13	54	0	47	53	4268	3.91
44	0	12	61	0	68	104	4692	5.22
45	0	15	76	0	95	164	5481	6.39
46	0	23	116	0	109	237	5718	8.48
47	0	11	146	0	157	267	5585	10.4
48	0	34	181	0	133	259	6133	9.9
49	0	46	353	0	131	309	6268	13.39
50	0	84	544	0	278	527	7483	19.15
51	0	97	777	0	447	664	7922	25.06
52	0	190	981	0	531	653	8989	26.2
01	0	325	1159	0	590	573	10402	25.45
02	0	545	1191	0	684	599	10181	29.65
03	0	823	1411	0	743	730	11031	33.61
04	0	1048	1472	0	936	964	12824	34.47
05	0	1202	1423	0	1110	1121	13620	35.65
06	0	1243	1448	0	1155	1172	14435	34.76
07	0	1410	1520	0	1413	1375	16163	35.38
08	0	1134	1207	0	1011	1189	14152	32.09
09	0	941	993	0	740	883	12749	27.9
10	0	652	791	0	501	680	11178	23.47
11	0	428	564	0	374	547	9517	20.1
12	0	253	414	0	266	387	8168	16.16
13	0	173	273	0	171	276	6807	13.12
14	0	88	193	0	93	246	6271	9.89
15	0	46	139	0	58	146	5213	7.46
16	0	30	54	0	29	77	4261	4.46
17	0	9	25	0	29	59	3613	3.38
18	0	9	17	0	10	23	2846	2.07
19	0	1	10	0	8	13	2669	1.2
20	0	0	3	0	3	9	2316	0.65
21	0	2	4	0	4	4	1868	0.75
22	0	1	0	0	5	1	1441	0.49
23	0	0	0	0	1	2	946	0.32