The FDA has cleared a multiplex polymerase chain reaction test designed to detect 11 clinically relevant gastrointestinal pathogens from a single stool sample.The Xpert GI Panel (Cepheid) can identify ...

Medically reviewed by Jordana Haber Hazan, MD Key Takeaways PCR tests are very accurate and can find the virus even in people without symptoms.Rapid tests can be done at home and show results in ...

Researchers often call the polymerase chain reaction test – known as the PCR test – "the gold standard" for detecting the COVID-19 virus. The test is considered highly reliable and effective, and it ...

Wearing a mask, social distancing and testing are all useful in preventing the spread of COVID-19. But when, where and how should you get tested? While the PCR (polymerase chain reaction) test, which ...

Polymerase chain reaction (PCR) is a nucleic acid amplification method that enzymatically generates large quantities of a specific DNA fragment from minimal starting material through iterative thermal ...