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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	1385	0.0
41	1	0	1	1	1512	0.2
42	0	0	0	0	1540	0.0
43	3	0	1	1	1711	0.3
44	0	0	2	2	1535	0.3
45	0	1	0	3	1856	0.2
46	0	0	6	4	1891	0.5
47	2	0	4	16	1754	1.3
48	1	0	5	6	1615	0.7
49	3	1	1	22	1861	1.5
50	3	0	3	39	1856	2.4
51	0	0	4	6	1301	0.8