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

Week	A(H1)	2009 A H1N1	A(H3)	A(unable to sub-type)	A(Subtyping not performed)	B	Total # Tested	% Positive
40	0	8	19	0	29	23	3670	2.15
41	0	13	34	0	43	31	4045	2.99
42	0	7	35	0	53	43	4176	3.3
43	0	14	53	0	47	48	4191	3.87
44	0	11	64	0	68	99	4665	5.19
45	0	14	65	0	94	162	5426	6.17
46	0	23	117	0	109	230	5674	8.44
47	0	12	143	0	156	260	5520	10.34
48	0	33	172	0	130	253	5869	10.02
49	0	46	309	0	125	301	5902	13.23
50	0	82	504	0	276	509	7072	19.39
51	0	95	707	0	424	640	7390	25.25
52	0	189	870	0	494	636	8405	26.04
01	0	321	1073	0	533	555	9664	25.68
02	0	537	1088	0	624	583	9572	29.59
03	0	823	1288	0	676	708	10342	33.79
04	0	1045	1420	0	868	930	12181	35
05	0	1187	1391	0	1049	1096	13032	36.24
06	0	1280	1422	0	1094	1137	13961	35.33
07	0	1411	1482	0	1346	1323	15584	35.69
08	0	1134	1195	0	959	1142	13590	32.6
09	0	911	978	0	711	841	12304	27.97
10	0	663	782	0	486	656	10793	23.97
11	0	461	571	0	364	514	9220	20.72
12	0	256	413	0	262	360	7864	16.42
13	0	182	273	0	159	260	6489	13.47
14	0	90	196	0	90	223	5914	10.13
15	0	48	137	0	56	149	5128	7.61
16	0	24	57	0	26	67	3993	4.36
17	0	13	24	0	28	58	3378	3.64
18	0	7	16	0	7	15	2363	1.9
19	0	1	2	0	5	6	1265	1.11