How will we use these 3 COVID tests in the future?

A quick run-down of PCR, rapid antigen, and serology tests.

Two nurses in biosecurity clothing looking into a car window
COVID tests in New Zealand. Staff members perform a test at the Museum of New Zealand Te Papa Tongarewa COVID-19 testing station during level 4 lockdown on August 25, 2021 in Wellington, New Zealand. Credit: Hagen Hopkins / Stringer