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	3723	2.04
41	0	13	38	0	43	35	4102	3.14
42	0	8	35	0	53	46	4245	3.35
43	0	13	55	0	47	53	4346	3.87
44	0	12	61	0	68	105	4741	5.19
45	0	15	76	0	95	164	5540	6.32
46	0	23	122	0	109	238	5781	8.51
47	0	11	152	0	158	267	5645	10.42
48	0	34	181	0	133	260	6194	9.82
49	0	46	356	0	131	309	6341	13.28
50	0	83	544	0	278	525	7546	18.95
51	0	97	777	0	447	664	7979	24.88
52	0	190	981	0	532	655	9067	26.01
01	0	326	1160	0	591	573	10497	25.25
02	0	546	1193	0	686	598	10243	29.51
03	0	822	1411	0	745	730	11096	33.42
04	0	1050	1479	0	936	965	12903	34.33
05	0	1203	1431	0	1113	1125	13727	35.49
06	1	1246	1456	0	1165	1181	14566	34.66
07	0	1415	1524	0	1421	1382	16306	35.21
08	0	1137	1211	0	1021	1203	14316	31.94
09	0	951	997	0	749	890	12888	27.83
10	0	667	801	0	510	696	11327	23.61
11	0	437	572	0	379	558	9636	20.2
12	0	258	418	0	271	406	8295	16.31
13	0	175	280	0	173	286	6933	13.18
14	0	88	196	0	93	252	6358	9.89
15	0	46	141	0	57	149	5298	7.42
16	0	30	55	0	28	79	4362	4.4
17	0	9	27	0	29	61	3699	3.41
18	0	11	18	0	10	23	3145	1.97
19	0	2	11	0	8	14	2908	1.2
20	0	0	5	0	4	10	2611	0.73
21	0	2	4	0	6	4	2348	0.68
22	0	1	0	0	5	5	2043	0.54
23	0	0	0	0	1	4	1869	0.27
24	0	2	1	0	6	0	1745	0.52
25	0	0	0	0	0	2	1666	0.12
26	0	2	0	0	1	1	1281	0.31
27	0	2	1	0	1	1	1232	0.41
28	0	0	3	0	0	3	1196	0.5
29	0	0	3	0	0	5	1223	0.65
30	0	0	0	0	2	1	1016	0.3
31	0	3	0	0	3	2	1076	0.74
32	0	0	3	0	6	2	1109	0.99
33	0	2	5	1	4	2	1195	1.17
34	0	0	3	1	5	3	1129	1.06
35	0	1	1	0	8	0	742	1.35