1 Department of Medicine, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa.
2 Brain Infections Group, Institute of Infection and Global Health, University of Liverpool, Liverpool, UK;; Department of Neurology, The Walton Centre for Neurology and Neurosurgery, Liverpool, UK.
3 Cardiology Unit, Yaoundé Central Hospital, Yaoundé, Cameroon;; Department of Internal Medicine and Specialties, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Yaoundé, Cameroon.
4 Department of Internal Medicine and Specialties, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Yaoundé, Cameroon.