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.

Last week, I was about to go on a date, and because I'm severely immunocompromised, we agreed he would take a COVID test ...

You might shudder at the thought of PCR tests making a comeback, but pleasingly, the latest wave have nothing to do with covid. Quirky microbiome skincare brand Gallinée has launched an at-home test ...

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 ...

Jon Jackson is a News Editor at Newsweek based in New York. His focus is on reporting on the Ukraine and Russia war. Jon previously worked at The Week, the River Journal, Den of Geek and Maxim. He ...

Recall, if you dare, life in December 2020. America had just approved Covid-19 vaccines for use, but most of us wouldn’t get a shot for months. Instead, amid the second surge of coronavirus cases, ...

Free COVID-19 test kits are available to American households via the United States Postal Service. People can expect to see different testing brands arrive in their mail. The Biden administration ...

COLUMBUS, Ohio — You've heard a lot of talk about genomic sequencing: It's the process used in labs to detect variants of COVID-19 from PCR test samples. Some social media users falsely claim it's ...

The claim: PCR creator Kary Mullis said the tests can detect 'anything in anybody' and can't tell you if you're sick Biochemist and PCR test creator Kary Mullis died in 2019, months before the ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Los Angeles County has launched a new pickup ...

You may get a PCR test, which can show a positive result for up to three months after recovery. If you take a rapid antigen test, it may not detect COVID after nine days, but it is more accurate for ...

With COVID case rates once again surging across the DMV, and many employers/schools tightening their return-to-building policies, rapid tests have become the hot-button item to secure this winter.