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 ...

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 ...

As the COVID-19 pandemic enters its fourth year, a negative result on a little plastic at-home test feels a bit less comforting than it once did. Still, you dutifully swab your nostrils before dinner ...

As SARS-C0V-2 variants emerged, researchers developed a PCR test that uses molecular beacons not only to diagnose COVID-19 infection, but also to identify the specific variant causing that infection.

In a study involving nearly 1,000 patients seen at a Baltimore field hospital during a five-month period in 2022, researchers at Johns Hopkins Medicine, the University of Maryland School of Medicine, ...

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 ...

There are currently two options for at-home flu testing. Here's what you need to know. (Photo illustration: Yahoo News; photos: Getty Images) Many Americans have become accustomed to swabbing their ...

Many of us are hearing stories lately about friends, neighbors and family members testing positive for the COVID-19 virus, even though official case numbers are likely being undercounted. Health ...

The government is ready to declare COVID-19 over: The nationwide state of emergency is set to end on May 11. In California, the state of emergency concluded in February. Johns Hopkins University shut ...