Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is associated with a high global morbidity and mortality risk among patients who have comorbidities. In COVID-19 patients, hypertension, ...

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 ...

COVID-19 tests generally fall into two categories: rapid antigen tests, and slower but more accurate polymerase chain reaction tests. The FDA granted emergency use authorization to a test that bucks ...

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.