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INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2013 - 2013 Season

Week	A(H1)	A(2009 H1N1)	A(H3)	H3N2v	A(unable to sub-type)	A(Subtyping not performed)	B	Total # Tested	% Positive
21	0	18	88	0	0	69	261	3750	11.63
22	0	16	85	0	0	56	229	3370	11.45
23	0	16	48	0	0	44	200	3062	10.06
24	0	9	63	0	0	56	186	2924	10.74
25	0	3	38	0	0	30	106	2540	6.97
26	0	3	26	0	0	22	118	2273	7.44
27	0	5	16	0	0	18	58	1973	4.92
28	0	4	36	1	0	15	43	2045	4.84
29	0	0	18	0	0	11	48	2083	3.7
30	0	2	49	9	0	13	33	2038	5.2
31	0	1	65	95	0	11	35	2144	9.65
32	0	3	64	73	0	12	27	2294	7.8
33	0	6	69	52	0	14	29	2483	6.85
34	0	7	48	15	0	21	26	2677	4.37
35	0	1	36	12	0	15	26	2699	3.33
36	0	1	34	5	0	16	37	2868	3.24
37	0	0	19	2	0	11	50	3199	2.56
38	0	4	42	0	0	17	42	3480	3.02
39	0	7	34	0	0	16	58	3498	3.29
40	0	3	27	0	0	9	36	2870	2.61