Rapid antigen detection tests are based on this principle. By now, many people have experienced an antigen test, a polymerase chain reaction (PCR) test, or both for COVID-19.

The first, called a RT-PCR test, is more than 95% accurate for detecting the virus. These were the tests that most Americans were given at drive-through and walk-in testing sites early in the ...

There are three different ways to test for COVID-19: PCR tests, antigen tests and antibody tests. Here are the differences.

What is an at-home rapid antigen test, and how does it differ from a PCR test? Most at-home tests are rapid antigen tests that look for specific proteins of the virus to detect infection.

At-home rapid tests for COVID-19 are more convenient. But experts say there are still times when a PCR test is useful.

The Covid-19 rapid antigen tests are very fast and convenient, but how often do they give false results? Two new studies yield some answers.

RT-PCR tests were conducted on 4,636 occasions, and 2,863 RT-PCR results from 2,579 patients were evaluated in the study.

All at-home tests are antigen tests. PCR tests look for the genetic material of the COVID-19 virus and are considered the most reliable way to test for COVID-19, according to the state.

Coronavirus outbreak Commentary Comment: At this point, rapid antigen tests better than PCR They’re quicker and can be more useful in situations, including testing in schools to keep them open ...

People who test positive for COVID-19 on a rapid test after five days of isolation are probably still infectious and should continue isolating, experts say. Though PCR tests are known to pick up ...