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	93	43	4348	3.6
46	25	2	73	32	4607	2.9
47	21	2	106	28	4546	3.5
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	134	7052	10.2
52	201	14	363	120	6738	10.4
01	128	14	231	85	6583	7.0
02	180	35	281	86	6423	9.1
03	174	44	415	76	6167	11.5
04	310	86	745	142	7091	18.1
05	367	107	1137	189	8014	22.5
06	495	133	1421	396	8688	28.1
07	428	133	1485	400	9499	25.8
08	296	153	1243	459	9138	23.5
09	201	192	939	479	7972	22.7
10	168	198	737	461	7607	20.6
11	144	204	539	389	6385	20.0
12	64	160	463	308	5916	16.8
13	46	132	292	159	4901	12.8
14	28	81	192	139	4150	10.6
15	27	172	129	110	3584	12.2
16	27	115	112	66	3143	10.2
17	20	109	71	61	2578	10.1
18	14	75	37	46	2117	8.1
19	4	36	34	26	1556	6.4
20	0	0	19	11	1063	2.8