Two types of COVID-19 tests, the rapid antigen test and the polymerase chain reaction (PCR) test, are available in the United States. The PCR typically relies on lab testing and is still considered ...

Researchers at the Paul Scherrer Institute PSI and the University of Basel have developed a rapid test for Covid-19. Its novel functional principle promises reliable and quantifiable results ...

A new rapid testing site opened in San Diego County on Monday to determine if residents have the novel coronavirus or are possibly immune to the virus. The COVID Clinic, which was started by Orange ...

People can test themselves about as accurately at home with rapid antigen coronavirus tests as health care professionals using the same tests, according to a Johns Hopkins Medicine-led study published ...

More than two years after the World Health Organization (WHO) declared an end to the emergency phase of the Covid-19 pandemic ...

After a recent COVID-19 exposure, Dr. Christina Astley tested positive on an at-home test—but just barely. The line signifying a positive result was so faint that Astley, an endocrinologist at Boston ...

When it comes to determining whether sniffles or a cough are COVID, people now rely more heavily on at-home tests to learn whether they have the virus. But can they trust that a self-test is providing ...

Peek in medicine cabinets across the U.S. and you’ll find stacks of leftover COVID-19 tests. When symptoms arise, so do questions: When should I test? How accurate is it really? And what should I do ...

With Covid-19 cases up across the country, many people are once again relying on home tests to guide decisions about going to work and sending their kids to school and other activities. A lot of those ...