Polymerase chain reaction (PCR) and rapid (antigen) tests for COVID-19 both involve taking a swab. Results for a PCR test take longer, as it needs to go to a laboratory. It is more costly but tends to ...

Two tests are apparently better than one. Starting today, anyone looking to take a rapid COVID-19 test at any of the 27 Miami-Dade County-run testing sites will have to also take a PCR test, ...

Antigen tests can identify the presence of antigens within the body, which are substances that cause immune responses, such as the release of antibodies. The immune system, and antibodies specifically ...

AND WHAT WORKS BEST FOR YOU? 11 NEWS REPORTER AMY LU GOT MESO ANSWERS. AMY: YOU SEET IINSIDE LAB-- A COMMON TYPE CALLED PCR TESTING LOOKS FOR THE VIRUS’ GENETIC CODE. >> THEN WE USE CHEMICALS AND ...

The announcement came last week with the White House signaling a billion-dollar investment in at-home rapid coronavirus tests. It also said 20,000 pharmacies across the country would offer free ...

"What the FDA was saying, that when they were looking at the sensitivity with regard to omicron, in some of the tests there appears to be somewhat of a diminution – not a disappearance, but a ...

Dr. Matt Binnicker, an expert in the diagnosis of infectious diseases, reviews scenarios where an at-home antigen test is a good option, and when to seek out a lab-based PCR. The omicron variant is ...