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

Week	A(H1)	A(Novel H1N1)	A(H3)	A(Could Not Subtyped)	A(Unk)	B	Total # Tested	% Positive
40	3	0	0	0	8	6	2606	0.65
41	4	0	4	0	8	6	2633	0.84
42	13	0	3	0	15	6	2746	1.35
43	22	0	0	0	24	14	3198	1.88
44	12	0	3	0	21	5	3320	1.23
45	32	0	2	0	23	11	3921	1.73
46	25	0	2	0	23	12	4146	1.5
47	27	0	1	0	31	23	4540	1.81
48	40	0	1	0	47	24	4636	2.42
49	43	0	6	0	57	14	5356	2.24
50	71	0	9	0	66	37	5788	3.16
51	73	0	19	0	108	56	6057	4.23
52	71	0	12	0	153	51	5830	4.92
53	115	0	19	0	171	48	6314	5.59
01	165	0	27	0	285	82	6700	8.34
02	196	0	22	0	423	96	6790	10.85
03	340	0	44	0	623	186	7600	15.7
04	558	0	77	0	898	359	9013	20.99
05	674	0	52	0	1359	672	11428	24.12
06	815	0	63	0	1337	911	12477	25.05
07	817	0	65	1	1068	894	11501	24.74
08	669	0	59	1	1002	1097	11720	24.13
09	527	0	57	0	882	1086	10485	24.34
10	353	0	63	0	638	1002	9248	22.23
11	346	0	62	0	429	873	8297	20.61
12	257	0	41	0	281	599	6879	17.12
13	107	0	25	0	163	430	5252	13.8
14	87	0	31	1	122	246	4486	10.86
15	37	0	28	0	70	161	3987	7.42
16	39	11	31	3	76	91	3446	7.28
17	398	613	376	198	325	418	20075	11.6