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INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2008 - 2009 Season

Week	A(H1)	A(H3)	A(Unk)	B	Total # Tested	% Positive
40	3	0	8	6	2615	0.65
41	4	4	8	6	2655	0.83
42	13	3	15	6	2777	1.33
43	22	0	24	14	3213	1.87
44	12	2	21	5	3358	1.19
45	30	2	23	11	3947	1.67
46	25	2	23	12	4181	1.48
47	27	1	31	23	4530	1.81
48	40	1	46	24	4627	2.4
49	41	5	57	14	5343	2.19
50	70	9	66	36	5764	3.14
51	73	17	108	56	6048	4.2
52	71	12	153	51	5839	4.92
53	111	17	168	47	6194	5.54
01	159	26	280	81	6642	8.22
02	188	20	417	95	6726	10.7
03	290	39	618	177	7421	15.15
04	461	68	885	319	8690	19.94
05	495	35	1334	556	10677	22.67
06	638	51	1187	735	11043	23.64
07	497	53	867	688	9351	22.51
08	243	12	624	539	6680	21.23