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

Week	A(H1)	A(H3)	A(Unk)	B	Total # Tested	% Positive
40	10	1	20	4	2255	1.55
41	11	3	22	1	2486	1.49
42	10	2	28	1	2870	1.43
43	8	1	27	5	3029	1.35
44	8	0	53	10	3407	2.08
45	13	9	47	10	3660	2.16
46	22	4	55	0	3947	2.05
47	32	2	90	12	3942	3.45
48	40	11	50	12	4530	2.49
49	29	10	112	22	4615	3.75
50	49	17	114	27	4811	4.3
51	56	24	159	46	5407	5.27
52	50	15	240	73	6719	5.63
01	60	39	267	83	5693	7.89
02	123	87	441	125	6091	12.74
03	135	115	579	158	5890	16.76
04	123	157	980	237	6923	21.62
05	81	248	916	293	6430	23.92