1. Tropical Infectious Diseases Research & Education Centre (TIDREC), University of Malaya, Kuala Lumpur, Malaysia.
2. Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
3. Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
4. U.S. Naval Medical Research Center—Asia, Singapore, Singapore.
5. Department of Parasitology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
6. Laboratory of Biochemical Pharmacology, Department of Pediatrics, Center for AIDS Research, Emory University School of Medicine, Atlanta, Georgia.