Affiliation: | aDepartment of Medicine, Tawau Hospital, Sabah, Malaysia.;bInfectious Diseases Unit, Department of Medicine, Sungai Buloh Hospital, Selangor, Malaysia.;cNeurology Unit, Department of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia.;dVirology Unit, Institute for Medical Research, Kuala Lumpur, Malaysia. |