INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2001 - 2002 Season

Week	A(H1N1) & A(H1N2)	A(H3N2)	A(Unk)	B	Total # Tested	% Positive
40	0	4	3	1	1048	0.8
41	0	2	3	0	1318	0.4
42	0	3	4	0	1281	0.5
43	0	7	8	0	1451	1.0
44	1	6	6	0	1563	0.8
45	0	12	1	0	1699	0.8
46	0	37	7	1	1936	2.3
47	0	25	2	3	1862	1.6
48	0	50	20	1	2113	3.4
49	1	34	42	5	2126	3.9
50	2	35	67	2	2182	4.9
51	3	43	114	3	2672	6.1
52	0	47	169	1	2414	9.0
01	0	102	231	2	3264	10.3
02	2	128	384	6	3582	14.5
03	1	242	639	5	4389	20.2
04	8	350	808	11	5433	21.7
05	3	406	960	20	5811	23.9
06	7	563	956	15	6439	23.9
07	4	520	1153	21	6906	24.6
08	11	447	1200	53	6601	25.9
09	8	316	931	77	5601	23.8
10	3	207	707	111	4792	21.5
11	4	118	449	134	3762	18.7
12	2	69	251	185	3129	16.2
13	1	26	105	186	2527	12.6
14	1	3	52	136	1699	11.3
15	1	8	7	39	666	8.3