Department of Infectious Diseases and Clinical Microbiology, Koç University, Istanbul, Turkey. Department of Infectious Diseases and Clinical Microbiology, Başkent University, Ankara, Turkey. Department of Infectious Diseases and Clinical Microbiology, Koşuyolu State Hospital, Istanbul, Turkey. Department of Infectious Diseases and Clinical Microbiology, Kocaeli University, Kocaeli, Turkey. Department of Infectious Diseases and Clinical Microbiology, Liv Hospital, Istanbul, Turkey. Department of Infectious Diseases and Clinical Microbiology, Ankara University, Istanbul, Turkey. Department of Infectious Diseases and Clinical Microbiology, University of Health Sciences, Istanbul, Turkey. Department of Infectious Diseases, American Hospital, Istanbul, Turkey. Department of Infectious Diseases and Clinical Microbiology, Dr Lütfü Kırdar Research and Training Hospital, Istanbul, Turkey. Department of Infectious Diseases and Clinical Microbiology, Göztepe Medicalpark, Istanbul, Turkey. Department of Infectious Diseases and Clinical Microbiology, Koç University, Istanbul, Turkey. Electronic address: oergonul@ku.edu.tr.