Guest Editors: Mohamed H. Ahmed (Department of Medicine and HIV Metabolic Clinic, Milton Keynes University Hospital NHS Foundation Trust, Eaglestone, Milton Keynes, Buckinghamshire, UK), Heitham Awadalla (Department of Community Medicine, Faculty of Medicine, University of Khartoum, Khartoum, Sudan) and Ahmed O. Almobarak (Department of Pathology, Faculty of Medicine, University of Medical Sciences and Technology, Khartoum, Sudan)

Guest Editors: Antoine Flahault (Institute of Global Health, Faculty of Medicine, University of Geneva, Geneva, Switzerland) and Olga De Santis (Institute of Global Health, Faculty of Medicine, University of Geneva, Geneva, Switzerland)

Guest Editor: Tom Lang (Principal, Tom Lang Communications and Training International, Kirkland, WA, USA)