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 ...

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.

Please provide your email address to receive an email when new articles are posted on . The BD MAX Respiratory Viral Panel detected and differentiated between influenza A and B respiratory syncytial ...

At-home COVID-19 tests have risen in popularity throughout the COVID-19 pandemic, and many American households are eagerly awaiting their free kits. But while self-test kits are a quick and easy way ...