There are three different ways to test for COVID-19: PCR tests, antigen tests and antibody tests. Each method is best for a different stage of COVID-19 infection. Used in sequence, all three methods ...

A woman gets a nasal swab. (Photo by Gustavo Fring from Pexels.) The advertiser paid a fee to promote this sponsored article and may have influenced or authored the content. The views expressed in ...

While you may be used to thinking of COVID tests as interchangeable, there’s a big difference between the standard at-home antigen test and a PCR (molecular) test. Almost five years in, it’s important ...

People with asymptomatic or mild COVID illness generally test negative after nine days, but a polymerase chain reaction (PCR) ...

If you had COVID-19 symptoms in 2020, you probably would have masked up and braved a visit to a laboratory, doctor’s office, or clinic to get a polymerase chain reaction (PCR) test. A health care ...

If you buy something from a Verge link, Vox Media may earn a commission. See our ethics statement. Victoria Song is a senior reporter focusing on wearables, health tech, and more with 13 years of ...

In a recent study posted to the medRxiv* server, a team of researchers investigated how antigen concentration and viral load in different specimen types affected the performance of severe acute ...

A polymerase chain reaction (PCR) test detects genetic material from a pathogen or abnormal cell sample. Ways of collecting samples include a nasal swab, a saliva swab, or taking a sample of blood.

Rapid COVID tests are convenient and easy to use because you can take them at home. But it's important to know how to interpret their results, when you should take another rapid test and when you ...

Everything about testing for covid-19 appears overly complicated. It is no wonder Americans are confused; and getting angry. So here’s a way to simplify our testing game plan: Let’s sideline ...