What's the difference between a PCR and antigen COVID-19 test?

UMass Chan molecular biologist Nate Hafer explains in a piece written for The Conversation.

What you need to know about at-home rapid tests and their results

When should I use a rapid COVID test, and how accurate are they

Testing Information - Delaware's Coronavirus Official Website

What tests could potentially be used for the screening, diagnosis

Comparative analyses of eighteen rapid antigen tests and RT-PCR

What is the difference between PCR and Antigen tests?

PCR Testing vs. Antigen Testing

Here's When You Should Take a PCR or a Rapid Antigen Test

Real-World Performance of COVID-19 Rapid Antigen Tests

Implementation of Antigen RDT (Ag-RDT) to detect COVID-19 cases in

Comparison of seven commercial SARS-CoV-2 rapid point-of-care

What's the difference between a PCR and antigen COVID-19 test? A

Sodas, Lemon Juice Cause False Positives in Rapid COVID-19 Tests