INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2006 - 2007 Season

Week	A(H1N1) & A(H1N2)	A(H3N2)	A(Unk)	B	Total # Tested	% Positive
40	13	2	26	15	2362	2.4
41	20	1	37	9	2555	2.6
42	17	4	37	21	2970	2.7
43	13	2	46	23	3294	2.6
44	25	1	74	42	3838	3.7
45	18	1	90	43	4319	3.5
46	23	2	73	32	4547	2.9
47	21	2	104	27	4510	3.4
48	43	1	107	55	5632	3.7
49	55	2	122	60	5628	4.2
50	106	9	301	119	6590	8.1
51	194	10	383	133	7051	10.2
52	201	14	363	120	6738	10.4
01	128	14	231	85	6583	7.0
02	180	35	281	86	6407	9.1
03	174	44	414	75	6140	11.5
04	310	86	743	140	7070	18.1
05	365	106	1132	189	7980	22.5
06	487	129	1411	391	8645	28.0
07	423	131	1476	395	9467	25.6
08	294	150	1234	456	9101	23.4
09	201	191	933	475	7943	22.7
10	166	191	735	459	7577	20.5
11	139	187	538	386	6330	19.7
12	60	138	458	300	5761	16.6
13	45	109	298	157	4787	12.7
14	27	64	187	133	3883	10.6
15	24	157	121	97	3027	13.2
16	26	103	81	47	2458	10.5
17	15	71	50	28	1673	9.8