Lazarus, G., Faculty of Medicine, Universitas Indonesia, Jakarta, 10430, Indonesia; Nelwan, E.J., Division of Tropical and Infectious Disease, Department of Internal Medicine, Faculty of Medicine Universitas Indonesia—Cipto Mangunkusumo Hospital, Jakarta, Indonesia; Hamers, R.L., Faculty of Medicine, Universitas Indonesia, Jakarta, 10430, Indonesia, Eijkman-Oxford Clinical Research Unit, Jakarta, Indonesia, Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK, United Kingdom