1. Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
2. Faculty of Medicine, Department of Microbiology, Yuzuncu Yil University, Van, Turkey
3. Faculty of Veterinary Medicine, Department of Microbiology, Kirikkale University, Kirikkale, Turkey
4. Faculty of Medicine, Department of Pediatrics, Marmara University, Istanbul, Turkey