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	4210	3.37
43	0	13	54	0	47	53	4263	3.92
44	0	12	61	0	68	104	4692	5.22
45	0	15	76	0	95	164	5482	6.38
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	6269	13.38
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	11032	33.6
04	0	1047	1472	0	936	964	12823	34.46
05	0	1202	1422	0	1110	1121	13619	35.65
06	0	1243	1446	0	1153	1166	14402	34.77
07	0	1410	1520	0	1413	1375	16163	35.38
08	0	1134	1207	0	1011	1189	14152	32.09
09	0	940	992	0	740	883	12747	27.89
10	0	652	786	0	493	652	10873	23.76
11	0	428	557	0	367	518	9198	20.33
12	0	253	411	0	263	361	7883	16.34
13	0	173	268	0	161	258	6552	13.13
14	0	88	191	0	91	230	6037	9.94
15	0	46	139	0	58	146	5211	7.46
16	0	30	54	0	29	77	4260	4.46
17	0	9	25	0	29	59	3582	3.41
18	0	9	17	0	9	23	2835	2.05
19	0	1	9	0	9	13	2655	1.21
20	0	0	2	0	3	9	2265	0.62
21	0	2	4	0	4	4	1733	0.81
22	0	1	0	0	5	0	1247	0.48