Polymerase chain reaction (PCR) and rapid (antigen) tests for COVID-19 both involve taking a swab. Results for a PCR test take longer, as it needs to go to a laboratory. It is more costly but tends to ...

There are three different ways to test for COVID-19: PCR tests, antigen tests and antibody tests. Each method is best for a different stage of COVID-19 infection. Used in sequence, all three methods ...

Nasopharyngeal swabs produced by 3D printing can provide comparable results to traditional swabs for SARS-CoV-2 reverse transcription polymerase chain reaction (RT-PCR) testing, according to research ...

A polymerase chain reaction (PCR) test detects genetic material from a pathogen or abnormal cell sample. Ways of collecting samples include a nasal swab, a saliva swab, or taking a sample of blood.

With funding stalled in Congress, providers must absorb costs or start charging. Americans who don't have health insurance will now start to see some of the free COVID-19 testing options disappear, ...

ATLANTA - The Georgia Department of Public Health is debuting kiosks that provide free COVID-19 PCR tests and results in roughly two days. The health department said Wednesday kiosks offer tests 24/7 ...

Adding a throat swab specimen to a nasal specimen significantly increased sensitivity of COVID-19 rapid antigen tests, whether self-collected or collected by a healthcare worker, a randomized clinical ...

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Last spring, a rapid polymerase chain reaction (PCR) test for COVID-19 — developed by Northwestern University spinoff company Minute Molecular Diagnostics — received emergency use authorization (EUA) ...