Case 33 is a 39 year-old female Singapore Citizen who has no recent travel history to mainland China, but who had been in Malaysia from 22 to 29 January.

She reported that she had developed symptoms on 30 January, and went to the emergency department at SKH on 2 February where she was admitted. Subsequent test results confirmed 2019-nCoV infection on 6 February at about 11pm.