INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2008 - 2009 Season

Week	A(H1)	2009 A H1N1	A(H3)	A(Could Not Subtyped)	A(Unk)	B	Total # Tested	% Positive
40	3	0	0	0	8	6	2613	0.65
41	5	0	4	0	8	6	2676	0.86
42	13	0	3	0	15	6	2802	1.32
43	22	0	0	0	24	14	3269	1.84
44	13	0	3	0	21	6	3393	1.27
45	33	0	2	0	23	11	3999	1.73
46	25	0	2	0	23	12	4219	1.47
47	25	0	1	0	30	28	4621	1.82
48	40	0	1	0	47	25	4736	2.39
49	44	0	6	0	58	17	5451	2.29
50	70	0	9	0	66	43	5895	3.19
51	76	0	19	0	109	59	6159	4.27
52	69	0	12	0	154	46	5931	4.74
53	116	0	19	0	175	49	6413	5.6
01	168	0	27	0	289	84	6813	8.34
02	198	0	22	0	425	105	6955	10.78
03	357	0	45	0	629	191	7772	15.72
04	559	0	78	0	898	371	9162	20.8
05	675	0	53	0	1369	674	11611	23.87
06	827	0	66	0	1375	930	12813	24.96
07	843	0	69	1	1080	916	11732	24.8
08	693	0	58	0	1016	1132	11935	24.29
09	539	0	68	0	889	1117	10689	24.45
10	382	0	68	0	643	1030	9438	22.49
11	356	0	63	0	429	889	8420	20.63
12	263	0	44	0	285	614	7175	16.81
13	118	0	27	0	171	456	5653	13.66
14	98	0	37	1	128	268	4986	10.67
15	38	0	29	1	76	171	4438	7.1
16	44	12	33	3	80	105	3935	7.04
17	657	1275	781	202	417	702	33027	12.21
18	471	2330	581	135	567	438	30715	14.72
19	139	1680	231	91	439	125	14969	18.07
20	69	2547	239	86	641	84	14047	26.1
21	32	2742	236	45	669	38	11871	31.69
22	25	3540	410	18	577	24	11992	38.31
23	29	3813	251	18	802	14	11997	41.07
24	15	4213	211	24	1061	9	12748	43.4
25	9	2990	69	33	777	7	10869	35.74
26	12	2109	37	26	591	5	9051	30.71
27	2	2364	33	13	526	5	9045	32.54
28	3	1817	23	17	416	3	8036	28.36
29	4	1536	14	24	283	3	6790	27.45
30	3	1560	10	22	306	1	6903	27.55
31	10	1017	5	16	399	3	6250	23.2
32	14	757	5	8	213	5	5127	19.54
33	1	570	6	15	211	1	4477	17.96