| Authors: |
Ng Y; Epidemiology and Disease Control Division, Ministry of Health, Singapore. Electronic address: NG_yixiang@moh.gov.sg., Nandar K; Communicable Disease Division, Ministry of Health, Singapore., Chua LAV; Epidemiology and Disease Control Division, Ministry of Health, Singapore., Mak TM; National Public Health Laboratory, Ministry of Health, Singapore., Foo K; Communicable Disease Division, Ministry of Health, Singapore., Muhammad IR; Communicable Disease Division, Ministry of Health, Singapore., Low CKK; Communicable Disease Division, Ministry of Health, Singapore., Ma S; Epidemiology and Disease Control Division, Ministry of Health, Singapore., Ooi SP; Communicable Disease Division, Ministry of Health, Singapore., Lin RTP; National Public Health Laboratory, Ministry of Health, Singapore., James L; Epidemiology and Disease Control Division, Ministry of Health, Singapore., Lee VJM; Communicable Disease Division, Ministry of Health, Singapore. |