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 ...

Now, more recent evidence suggests that you can take your at-home tests to the next level by swabbing more sites than just your nose. Where you swab might matter just as much as when you swab. A lot ...

Q: In most cases, we will repeat the RT-PCR test on the assumption that the original test was conducted too soon or got contaminated. Adding the PCR antibody testing could tell us a little more about ...

As the holiday season kicks off United States, so does another, less enjoyable winter tradition: respiratory virus season. Although COVID-19 cases and hospitalizations have been trending downward in ...

At the start of the SARS-CoV-2 pandemic people who felt unwell had to join long queues for lab-based PCR tests and then wait for two days to learn if they were infected with the COVID-19 virus or not.

COVID cases are starting to creep up again in the U.S., and it’s understandable to have new questions about the virus and the newest CDC guidance on isolation after a positive test. After all, it’s ...