The nose swab PCR test for COVID-19 is the most accurate and reliable test for diagnosing COVID-19. A positive test means you likely have COVID-19. A negative test means you probably did not have COVID-19 at the time of the test. Get tested if you have symptoms of COVID-19 or have been exposed to someone who tested positive for COVID-19.
COVID-19 diagnostic testing is done to find out if you're currently infected with SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19).
The U.S. Food and Drug Administration (FDA) approved these types of tests for diagnosing a COVID-19 infection
What kind of COVID-19 tests are available? What are antigens and antibodies? What about the accuracy of these tests? WHO’s Dr Hanan Balkhy explains COVID-19 tests in Science in 5