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INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2007 - 2008 Season

Week	A(H1)	A(H3)	A(Unk)	B	Total # Tested	% Positive
40	11	2	20	4	2256	1.64
41	11	3	22	1	2486	1.49
42	10	2	28	1	2870	1.43
43	9	2	27	6	3033	1.45
44	8	0	53	10	3425	2.07
45	13	10	47	10	3676	2.18
46	22	4	55	0	3964	2.04
47	32	2	90	12	3954	3.44
48	42	12	50	12	4552	2.55
49	32	10	112	22	4701	3.74
50	49	19	115	27	4977	4.22
51	60	26	160	49	5552	5.31
52	55	18	259	77	6984	5.86
01	64	46	316	98	6414	8.17
02	144	118	535	143	6960	13.51
03	180	159	708	192	7229	17.14
04	181	322	1176	309	8708	22.83
05	222	560	2158	565	12035	29.12
06	202	726	2523	770	13239	31.88
07	153	645	2269	865	12370	31.79
08	136	759	2163	1102	13695	30.38
09	83	581	1520	926	10697	29.07
10	19	183	1026	708	8969	21.59