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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	22	15	2308	2.3
41	20	1	31	9	2492	2.4
42	17	3	32	21	2896	2.5
43	13	1	43	22	3277	2.4
44	25	1	71	42	3775	3.7
45	18	0	84	41	4179	3.4
46	23	0	72	32	4443	2.9
47	21	2	101	28	4381	3.5
48	42	1	105	55	5506	3.7
49	54	2	121	59	5474	4.3
50	104	9	298	117	6466	8.2
51	191	9	381	129	6890	10.3
52	196	14	354	116	6437	10.6
01	122	12	222	84	6147	7.2
02	168	31	272	80	5862	9.4
03	157	32	392	69	5576	11.7
04	224	56	653	120	5825	18.1
05	208	38	978	149	5953	23.1
06	76	12	793	190	3986	26.9