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	30	23	3727	2.07
41	0	13	37	0	43	35	4099	3.12
42	0	8	35	0	53	46	4242	3.35
43	0	13	55	0	47	53	4344	3.87
44	0	12	61	0	68	106	4737	5.21
45	0	15	76	0	95	163	5540	6.3
46	0	23	122	0	109	238	5778	8.52
47	0	11	152	0	158	267	5650	10.41
48	0	34	181	0	133	260	6198	9.81
49	0	46	357	0	131	309	6342	13.29
50	0	83	543	0	278	528	7556	18.95
51	0	97	778	0	447	666	7989	24.88
52	0	190	983	0	532	651	9058	26.01
01	0	328	1158	0	590	575	10510	25.22
02	0	546	1194	0	686	595	10244	29.49
03	0	825	1415	0	745	738	11130	33.45
04	0	1054	1482	0	936	963	12917	34.33
05	0	1203	1435	0	1113	1126	13741	35.49
06	0	1246	1461	0	1165	1178	14551	34.71
07	0	1417	1535	0	1421	1378	16318	35.24
08	0	1140	1211	0	1021	1200	14312	31.95
09	0	949	983	0	747	889	12864	27.74
10	0	670	802	0	510	696	11319	23.66
11	0	438	578	0	379	558	9650	20.24
12	0	261	419	0	271	406	8304	16.34
13	0	162	262	0	173	286	6907	12.78
14	0	87	196	0	93	252	6355	9.88
15	0	47	141	0	57	149	5302	7.43
16	0	29	56	0	28	79	4362	4.4
17	0	9	26	0	29	61	3700	3.38
18	0	11	18	0	10	23	3147	1.97
19	0	2	11	0	8	14	2910	1.2
20	0	0	5	0	4	10	2609	0.73
21	0	2	4	0	6	4	2350	0.68
22	0	1	0	0	5	5	2044	0.54
23	0	0	0	0	1	4	1872	0.27
24	0	2	1	0	6	0	1747	0.52
25	0	0	0	0	0	2	1666	0.12
26	0	2	0	0	1	1	1282	0.31
27	0	2	1	0	1	1	1232	0.41
28	0	0	3	0	0	3	1198	0.5
29	0	0	3	0	0	5	1224	0.65
30	0	0	0	0	2	1	1069	0.28
31	0	3	2	0	3	2	1101	0.91
32	0	0	3	0	6	2	1135	0.97
33	0	2	5	1	4	3	1230	1.22
34	0	0	4	1	5	5	1282	1.17
35	0	1	1	0	8	0	1254	0.8
36	0	0	2	0	7	0	691	1.3