Detection of avian influenza A(H7N9) virus from live poultry markets in Guangzhou, China: a surveillance report.
A virologic surveillance program for A(H7N9) virus was conducted from April 15, 2013 to February 14, 2014 in Guangzhou, aiming to clarify the geographical distribution of A(H7N9) viruses among live poultry markets (LPMs) and poultry farms in Guangzhou.Virological and serological surveys of poultry workers were also conducted to evaluate the risk of