Add Yahoo as a preferred source to see more of our stories on Google. COVID-19 tests are in greater demand than ever, and new data about the Omicron variant can make picking and using different types ...

We regularly answer frequently asked questions about life during the coronavirus crisis. If you have a question you'd like us to consider for a future post, email us at goatsandsoda@npr.org with the ...

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 ...

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 ...

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 ...

PCR tests are one of the most accurate forms of testing for the coronavirus. PCR stand for polymerase chain reaction test. There are many different reasons why you may need to book a covid test, for ...

As the various subvariants of omicron continue to circulate in the U.S., rapid at-home tests remain an important tool for protecting yourself and others. Home tests are appealing because they allow ...

Finding a COVID-19 test has become a real challenge with the spread of the omicron variant. But there is also confusion over which test people should be getting, which is a PCR or antigen? “The two ...

Viruses that cause measles and the common cold do not produce false-positive COVID-19 reverse transcriptase polymerase chain reaction (RT-PCR) tests, contrary to posts circulating widely online. A ...

Antigen tests can identify the presence of antigens within the body, which are substances that cause immune responses, such as the release of antibodies. The immune system, and antibodies specifically ...