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	18	0	30	23	3725	2.09
41	0	13	36	0	43	36	4104	3.12
42	0	8	35	0	53	45	4240	3.33
43	0	13	55	0	47	53	4348	3.86
44	0	12	61	0	68	106	4734	5.22
45	0	15	78	0	95	164	5553	6.34
46	0	23	121	0	109	238	5770	8.51
47	0	11	153	0	158	266	5647	10.41
48	0	34	181	0	133	261	6196	9.83
49	0	46	356	0	131	310	6339	13.3
50	0	83	547	0	278	530	7568	19
51	0	98	783	0	447	671	8006	24.97
52	0	190	994	0	536	654	9088	26.12
01	0	328	1146	0	595	576	10512	25.16
02	0	545	1193	0	689	598	10247	29.52
03	0	815	1417	0	754	736	11120	33.47
04	0	1040	1481	0	953	965	12929	34.33
05	0	1189	1446	0	1133	1131	13775	35.56
06	0	1234	1462	0	1181	1183	14547	34.78
07	0	1394	1531	0	1430	1365	16293	35.11
08	0	1139	1210	0	1030	1202	14323	31.98
09	0	939	968	0	752	893	12829	27.69
10	0	664	798	0	513	688	11284	23.6
11	0	435	580	0	380	555	9644	20.22
12	0	260	415	0	273	407	8303	16.32
13	0	161	263	0	173	285	6912	12.76
14	0	87	197	0	93	251	6346	9.9
15	0	46	140	0	58	149	5292	7.43
16	0	29	55	0	28	79	4357	4.38
17	0	9	27	0	29	61	3699	3.41
18	0	11	18	0	10	23	3149	1.97
19	0	2	11	0	8	14	2909	1.2
20	0	0	5	0	4	10	2611	0.73
21	0	2	4	0	6	4	2352	0.68
22	0	1	0	0	5	5	2062	0.53
23	0	0	0	0	1	4	1885	0.27
24	0	2	1	0	6	0	1773	0.51
25	0	0	0	0	0	2	1690	0.12
26	0	2	0	0	1	1	1310	0.31
27	0	2	1	0	1	1	1307	0.38
28	0	0	3	0	0	3	1251	0.48
29	0	0	3	0	0	5	1311	0.61
30	0	0	0	0	2	1	1135	0.26
31	0	3	2	0	3	2	1198	0.83
32	0	0	3	0	6	2	1205	0.91
33	0	2	5	0	5	3	1364	1.1
34	0	0	6	0	5	5	1402	1.14
35	0	1	2	0	8	1	1386	0.87
36	0	0	3	0	7	0	1403	0.71
37	0	0	1	0	2	0	870	0.34