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	2612	0.65
41	5	0	4	0	8	6	2663	0.86
42	13	0	3	0	15	6	2798	1.32
43	22	0	0	0	20	12	3249	1.66
44	13	0	3	0	21	6	3389	1.27
45	33	0	2	0	23	11	3990	1.73
46	25	0	2	0	23	12	4214	1.47
47	25	0	1	0	30	25	4606	1.76
48	40	0	1	0	47	20	4724	2.29
49	43	0	6	0	58	17	5438	2.28
50	70	0	9	0	66	41	5876	3.17
51	75	0	18	0	108	59	6138	4.24
52	68	0	12	0	154	43	5912	4.69
53	111	0	19	0	175	47	6380	5.52
01	162	0	27	0	289	77	6777	8.19
02	193	0	22	0	421	104	6906	10.72
03	350	0	45	0	624	185	7737	15.56
04	555	0	78	0	893	366	9122	20.74
05	670	0	52	0	1368	673	11576	23.87
06	815	0	66	0	1375	928	12778	24.92
07	838	0	68	1	1080	912	11706	24.77
08	687	0	57	0	1016	1127	11915	24.23
09	523	0	65	0	889	1102	10627	24.27
10	378	0	67	0	643	1024	9415	22.43
11	353	0	62	0	429	886	8403	20.59
12	262	0	44	0	285	610	7159	16.78
13	118	0	27	0	171	453	5637	13.64
14	98	0	37	1	129	267	4978	10.69
15	38	0	29	1	76	171	4421	7.13
16	43	12	33	3	80	105	3905	7.07
17	642	1283	850	199	416	707	32873	12.46
18	469	2370	709	123	551	425	31172	14.91
19	142	1690	259	91	445	125	15098	18.23
20	72	2573	260	86	645	89	14238	26.16
21	32	2792	259	45	687	38	12074	31.91
22	27	3619	424	30	580	24	12168	38.66
23	29	3885	262	32	807	14	12219	41.16
24	15	4343	216	47	1071	9	13026	43.77
25	9	3132	72	79	794	7	11203	36.53
26	80	2393	38	101	598	5	9640	33.35
27	2	2562	41	66	532	5	9580	33.49
28	11	2050	28	80	425	3	8734	29.73
29	19	1808	15	71	289	3	7559	29.17
30	25	1838	12	70	340	3	7945	28.8
31	17	1264	7	37	435	3	7265	24.27
32	4	1238	8	22	287	5	7101	22.03
33	2	1571	16	23	416	1	8462	23.98
34	8	1332	12	36	580	8	9819	20.12
35	1	1427	12	40	789	0	11259	20.15
36	1	1752	3	24	938	5	12074	22.55
37	4	1395	1	17	907	2	9744	23.87