1. Department of Microbiology, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
2. Department of Biochemistry and Biophysics, Metabolic Disorders Research Center, School of Medicine, Golestan University of Medical Science, Gorgan, Iran
3. Division of Paediatric and Adolescent Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
4. Department of Paediatrics and Adolescent Health, University of Botswana, Gaborone, Botswana
5. Infectious Diseases Research Centre, Golestan University of Medical Sciences, Gorgan, Iran