CHICAGO (CBS) -- A new rapid PCR COVID-19 test invented by Northwestern University faculty and Minute Molecular Diagnostics has received FDA emergency use authorization. CBS 2's Meredith Barack ...

New COVID-19 restrictions for international travel and other activities are fueling consumer demand for highly accurate polymerase chain reaction, or PCR, tests with rapid turnaround times. Some ...

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.

For Rachel Robles, getting diagnosed with Long COVID was an uphill battle. She caught the virus in March 2020, when nearly nothing was known about its long-term effects and testing was inaccessible ...