INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2012 - 2013 Season

Week	A(H1)	A(2009 H1N1)	A(H3)	A(unable to sub-type)	A(Subtyping not performed)	B	Total # Tested	% Positive
40	0	3	71	0	10	79	4343	3.75
41	0	7	67	0	25	98	4713	4.18
42	0	4	128	0	47	121	5009	5.99
43	0	3	148	0	49	139	4913	6.9
44	0	4	180	0	73	151	5148	7.93
45	0	5	269	0	114	231	6136	10.09
46	0	8	365	0	211	265	6363	13.37
47	0	7	570	0	408	361	7091	19.02
48	0	17	967	0	532	497	8859	22.73
49	0	35	1702	0	979	677	11415	29.72
50	0	45	2516	0	1142	820	13823	32.72
51	0	47	3394	0	1252	1096	15520	37.3
52	0	60	3534	0	1550	1135	16692	37.63
01	0	68	3429	0	1643	1059	17422	35.58
02	0	68	3031	0	1492	825	16686	32.46
03	0	57	1579	0	879	614	11984	26.11