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INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2002 - 2003 Season

Week	A(H1N1) & A(H1N2)	A(H3N2)	A(Unk)	B	Total # Tested	% Positive
40	0	0	0	0	1380	0.0
41	1	0	1	1	1482	0.2
42	0	0	0	0	1513	0.0
43	3	0	1	1	1689	0.3
44	0	0	2	2	1489	0.3
45	0	1	0	3	1549	0.3
46	0	0	6	4	1594	0.6
47	2	0	4	16	1455	1.5
48	1	0	3	6	1189	0.8
49	3	1	1	20	1160	2.2
50	3	0	0	27	929	3.2