Originally Posted by Unregistered

“Any person with a positive PCR, or polymerase chain reaction, swab must be assumed to be infectious and immediately isolated”, Dr Lim added.

Dr Lim was referring to a 43 year-old Indian expat on Work Pass who arrived in Singapore from India on 2 Apr and was tested positive for COVID-19 on arrival. His serology test result also came back positive suggesting that it was an old infection (‘Expat from India discharged from hospital as recovered COVID case, who later goes on to infect 2 others‘).