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

Week	A(H1)	A(H3)	A(Unk)	B	Total # Tested	% Positive
40	3	0	8	6	2598	0.65
41	4	4	8	6	2632	0.84
42	13	3	15	6	2746	1.35
43	22	0	24	14	3198	1.88
44	12	3	21	5	3320	1.23
45	32	2	23	11	3920	1.73
46	25	2	23	12	4145	1.5
47	27	1	31	23	4540	1.81
48	40	1	46	24	4636	2.39
49	43	5	57	14	5355	2.22
50	71	9	66	37	5788	3.16
51	73	19	108	56	6057	4.23
52	71	12	152	51	5829	4.91
53	113	19	170	48	6237	5.61
01	165	26	281	82	6678	8.3
02	196	22	419	96	6775	10.82
03	340	44	618	186	7517	15.8
04	556	76	894	359	8954	21.05
05	674	52	1357	670	11402	24.14
06	811	63	1335	909	12334	25.28
07	806	64	1037	884	11159	25.01
08	647	57	913	1031	10983	24.11
09	408	43	811	995	9501	23.76
10	223	32	577	827	7941	20.89
11	158	27	339	580	5161	21.39