PCR tests are far superior to rapid antigen tests—and now you can get them for home use.

As the virus evolves, do at-home COVID-19 antigen tests still work? Here's what to know about the accuracy of rapid COVID-19 tests.

Multiple infectious disease specialists told USA TODAY COVID-19 PCR tests cannot be used to clone humans.

If you do not have symptoms but have been exposed to COVID-19, wait at least 5 full days after your exposure before taking a test. If you are only going to take a single test, a PCR test will ...

RSV tests include nasal swabs or blood tests to detect the virus's genetic material or antibodies, but rapid tests provide quick results.

A PCR test, which is taken by a doctor and processed in a lab is more reliable in detecting if you are negative for COVID. If you take an antigen test, which is an at-home test, a negative result ...

The COVID tests done in medical settings are PCR tests, which are different than the at-home antigen tests, and are more sensitive to the virus.

Whether you opt for a PCR or antigen test, testing remains important to curb the spread of COVID. Do old COVID tests work for new variants?

A false positive result is possible with a rapid COVID-19 test. It happens when a person does not have COVID-19 but still tests positive for the disease.