farzad khademi antimicrobial resistance research center, department of medical bacteriology and virology, qaem university hospital, school of medicine, mashhad university of medical sciences, mashhad, ir iran arshid yousefi antimicrobial resistance research center, department of medical bacteriology and virology, qaem university hospital, school of medicine, mashhad university of medical sciences, mashhad, ir iran pezhman karami antimicrobial resistance research center, department of medical bacteriology and virology, qaem university hospital, school of medicine, mashhad university of medical sciences, mashhad, ir iran kiarash ghazvini antimicrobial resistance research center, department of medical bacteriology and virology, qaem university hospital, school of medicine, mashhad university of medical sciences, mashhad, ir iran fahimeh ghanbari department of microbiology, faculty of bioscience, islamic azad university, falavarjan branch, isfahan, iran