BURLINGTON, N.C.--(BUSINESS WIRE)--Labcorp (NYSE: LH), a global life sciences company, is now offering observed self-collection for COVID-19 PCR testing in more than 500 of its patient service centers ...
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.