1. Department of Microbiology, Libyan Biotechnology Research Center, Tripoli, Libya
2. Pediatric Intensive Care Unit, Tripoli University Hospital, Tripoli, Libya
3. Medical Intensive Care Unit, Tripoli University Hospital, Tripoli, Libya
4. Neonatal Intensive Care Unit, Tripoli University Hospital, Tripoli, Libya
5. Infection Control Office, Tripoli University Hospital, Tripoli, Libya
6. Department of Environmental Health, Faculty of Public Health, University of Benghazi, Benghazi, Libya