For any American wondering if they have Covid-19, there are two kinds of tests available: polymerase chain reaction (PCR) and rapid antigen (sometimes just called “rapid tests”). The two tests ...

And, by the way, the rapid antigen test he took when he got home that night was negative. Regardless of how you much of a health risk you see in COVID, it is still, at best, an inconvenience that ...

Meanwhile, rapid antigen tests have four advantages. First, if you have covid-19 symptoms such as fatigue, fever, cough, or loss of smell and taste, an antigen test can quickly confirm the diagnosis.

The government is offering free COVID-19 testing kits to all Americans, many may have questions about how accurate these tests are. Both the PCR and Antigen tests can detect an active case of ...

A phase 2 study shows that azelastine nasal spray lowered coronavirus infection rates to 2.2% compared to 6.7%, researchers ...

What is an at-home rapid antigen test, and how does it differ from a PCR test? Most at-home tests are rapid antigen tests that look for specific proteins of the virus to detect infection.

It's a question many are asking -- when do you take a PCR COVID-19 test versus taking a rapid test?

In a recent study posted to the Lancet preprint* server, researchers assessed the utility of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) rapid antigen testing (RAT) for patient ...

New high-tech Covid-19 tests promise better and earlier detection of the virus—similar to a PCR test. WSJ’s Joanna Stern (and her mannequin clone) tried out the Detect Covid-19 Test and Cue ...

You can exhibit COVID-19 symptoms yet test negative due to early infection, low viral load, or immune response. PCR testing ...

Opinion PCR covid tests are not very useful. Focus on rapid antigen tests instead. January 26, 2022 More than 3 years ago ...

A new study from researchers at UMass Chan Medical School shows at-home COVID-19 antigen tests performed “similarly” well at detecting the Omicron and Delta variants in people as the PCR tests ...