
Keywords: بخش مراقبتهای ویژه; Epidemiology; Influenza; Influenza-like illness-ILI; Molecular methods; Surveillance; Vaccine effectiveness; ICU; Intensive care unit; ILI; Influenza-like illness; HA; hemagglutinin; HCDCP; Hellenic Centre for Disease Control and Prevention; NIRL; Natio