Objective To understand the epidemic characteristics of influence and subtypes of influenza viruses in Xuzhou areas from 2005 to 2012.Methods Influenza viruses were isolated by cell culture with real-time PCR,and the subtypes were identified by HI tests.Results From 2005 to 2012,a total of 9 700 swab specimens were collected from three hospitals and 999 strains were identified of influenza viruses with an average rate of 10.30%,there were 669 cases of flu A(66.97%) and 330 cases of flu B(33.03%).Conclusions...