Simaremare, A.P.R., Biomedical Programme, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Bela, B., Institute of Human Virology and Cancer Biology, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Department of Microbiology, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Yasmon, A., Department of Microbiology, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Ibrahim, F., Institute of Human Virology and Cancer Biology, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Department of Microbiology, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia