The head of NSW’s busiest COVID-19 testing lab says rising numbers of people will return undefined coronavirus results as the testing blitz picks up cases that shed the virus weeks ago. According to Professor Bill Rawlinson, director of Serology, Virology and OTDS Laboratories (SAViD), NSW Health Pathology based at Prince of Wales Hospital, “We are at the stage when individuals may only be positive for one of the several targets that PCR tests pick up,” he said, referring to the molecular testing performed samples collected by the nasal and throat swabs at COVID clinics. “These indeterminate results are going to increase because there will be people who had [the virus] a long time ago and still have some residual RNA [ribonucleic acid].”
Read here (The Sydney Morning Herald, April 25, 2020)
