COVID: which test, when and why?

Dr Linda Calabresi

writer

Dr Linda Calabresi

GP; Medical Editor, Healthed

Dr Linda Calabresi

This week’s expert:
A/Prof Sanjaya Senanayake AO, Infectious Diseases Physician; Medical School, ANU

Drawn from an interview with A/Prof Senanayake by Dr Harry Nespolon on the Healthed podcast Going Viral.

• In an acute infection of COVID-19, the PCR test is most likely to be positive three days after the first symptoms develop.

• The PCR may be negative if done too early in the course of the disease, ie prior to symptoms developing.

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