1. Department of Community Medicine, Ladoke Akintola University of Technology Teaching Hospital, Ogbomoso, Oyo State, Nigeria
2. Department of Community Medicine, Faculty of Clinical Sciences, College of Health Sciences, Ladoke Akintola University of Technology, Osogbo, Nigeria
3. Directorate of Disease Control, Lagos State Ministry of Health, Alausa, Ikeja 100282, Lagos State, Nigeria