INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2004 - 2005 Season

Week	A(H1N1) & A(H1N2)	A(H3N2)	A(Unk)	B	Total # Tested	% Positive
40	0	5	3	4	1705	0.7
41	0	9	2	2	2009	0.6
42	0	14	11	9	2330	1.5
43	0	13	12	7	2481	1.3
44	0	15	8	16	2489	1.6
45	0	9	10	23	2682	1.6
46	0	18	26	18	2758	2.2
47	0	8	22	16	2768	1.7
48	0	33	33	23	3050	2.9
49	0	35	58	14	2523	4.2
50	0	26	60	7	1703	5.5