INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2011 - 2012 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	11	0	9	9	2674	1.2
41	0	0	5	0	1	7	2390	0.54
42	0	1	4	0	8	7	2440	0.82
43	0	0	4	0	13	4	2370	0.89
44	0	0	0	0	8	3	1833	0.6