Objective To examine prevalence characteristics and pathogenic spectrum of fever with respiratory syndrome in Liaoning province and to provide a basis for clinical diagnosis and prevention and control of the syndrome.Methods Medical records and throat swab specimens of fever and respiratory syndrome cases were collected at 10 sentinel hospitals in 8 cities of Liaoning province from 2012 through 2014. Influenza virus(Flu),parainfluenza virus(PIA),respiratory adenovirus( Adv),respiratory syncytial virus( RSV)...