RSV is short for respiratory syncytial virus. It’s a virus that can cause respiratory infections in your lungs, nose, and throat. It’s best to test for RSV soon after your symptoms start. That’s ...

Approximately 11 million American households have ordered their new round of free COVID-19 test kits, the White House says, over the first week since the Biden administration reopened requests. The ...

The government is offering another round of free at-home COVID tests to Americans in time for the holiday season. As flu and RSV season kick into full swing, precautions meant to keep families healthy ...

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 ...

A false positive result is possible with a rapid COVID-19 test. It happens when a person does not have COVID-19 but still tests positive for the disease. People can use a rapid COVID-19 test at home ...

A study led by Osaka University recently found that the sensitivity of rapid antigen tests (RATs) for the Omicron variant of COVID-19 when compared with polymerase chain reaction (PCR) tests was 0.63 ...

Polymerase chain reaction (PCR) test kits for COVID-19 use what’s known as gene cloning – not reproductive cloning – to detect the presence or absence of the SARS-CoV-2 virus, but social media posts ...