One of the best ways to figure out how far a virus like COVID-19 has spread in a community is to test for it. This step-by-step guide explains how coronavirus swab-the-nose-and-throat tests work ...

In the weeks following an infection, the cells of the nose and throat can retain fragments of virus genetic material that aren’t infectious, but that can be amplified by the PCR process ...

The surge in cases forced pathology clinics to change how they process the tests from doing ... More than 30,000 PCR tests are being done each day as Queenslanders swarm testing sites, leading ...