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 ...

This decision, well within current norms for care, was nonetheless consequential: The president was forced to cancel a trip to advocate for legislation in support of the domestic semiconductor ...

COVID-19 tests are in greater demand than ever, and new data about the Omicron variant can make picking and using different types of tests confusing. Molecular tests for COVID-19, like the "RT-PCR" ...

Every American traveling abroad needs to take an antigen test to return to the United States. But the start of the trip is often even more cumbersome, as many other countries (nearly every one I have ...

New COVID-19 restrictions for international travel and other activities are fueling consumer demand for highly accurate polymerase chain reaction, or PCR, tests with rapid turnaround times. Some ...

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 ...

Though PCR testing has been established as the gold standard for COVID-19 detection, it remains less accessible than rapid antigen testing, since most PCR tests typically take longer to return results ...

A PCR test is often considered the gold standard for detecting coronavirus infection. It’s the test some employers want employees to take before returning to work after having Covid-19, and the one ...