Posts circulating on Facebook and Instagram claim the Centers for Disease Control and Prevention will stop using its COVID-19 test because it cannot differentiate between the COVID virus and flu ...

When pop-up COVID-19 testing sites opened all over Chicago and cities across the U.S. late last year, many had the same question on their minds: Where did they all come from, and who was authorizing ...

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 work in ...

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...

Many people will have experienced being unwell with an unknown infection and having to undergo multiple tests to determine the culprit. This sequential process of elimination can be time-consuming and ...

Over the past four years, many of us have become accustomed to a swab up the nose to test for COVID-19, using at-home rapid antigen tests or the more accurate clinic-provided PCR tests with a longer ...

PCR processes are the diagnostic gold standard when it comes to identifying coronavirus infections. Unlike rapid antigen tests, they function even in the case of a low viral load and detect the ...

Despite the resurgence of COVID-19 this spring, there are now fewer options for free PCR tests in New York City. A Gothamist analysis of municipal data found that the number of NYC Health + Hospitals ...