1. Infectious Disease and Vaccine Center, The University of Jordan, Amman, Jordan
2. Department of Medicine, Division of Infectious Diseases, School of Medicine, The University of Jordan, Amman, Jordan
3. Department of Nutrition and Food Technology, School of Agriculture, The University of Jordan, Amman, Jordan
4. Department of Medicine, Division of Rheumatology, School of Medicine, The University of Jordan, Amman, Jordan