1 Programme in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore 169857; Viral Research and Experimental Medicine Centre, SingHealth Duke-NUS Academic Medical Centre, Singapore; Department of Translational Clinical Research, Singapore General Hospital, Singapore; Saw Swee Hock School of Public Health, National University of Singapore, Singapore. Electronic address: [email protected].
2 Department of Infectious Diseases, Singapore General Hospital, Singapore.