Orf virus infection in human ecthyma contagiosum: a case report in the Northestern of IranRunning title: Orf Virus Infection: A Case of Ecthyma Contagiosum in IranMahnaz Arian1, Nazanin Moradi Sani2, Mohammad Saleh Safavi Shamlou3, Kiana Ketabi1*Department of Infectious Diseases and Tropical Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, IranStudent of Professional Doctorates in Medicine, Imam Reza Medical Research and Training Hospital, Mashhad University of Medical Sciences, Mashhad, IranStudent research committee, Mashhad University of Medical Sciences, Mashhad, Iran.Corresponding Author:Kiana KetabiPhD in Medical Virology, Department of Infectious Diseases and Tropical Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, IranEmail: Ketabi.kiana@yahoo.comTel: +989151217794ORCID: 0000-0001-5189-3046