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 ...

Diagnostic or polymerase chain reaction (PCR) tests are currently being used to diagnose patients with COVID-19. Antibody tests allow for more accurate tracking of the spread of the coronavirus.

With Omicron surging in the United States, many people are taking COVID-19 tests to see whether they test positive. Most people will take either a rapid antigen or PCR test. Though the PCR test is ...

Antigens and antibodies play vital but distinct roles in illness and disease. One tries to wreak havoc on our health while the other fights to protect it. Simply put, antigens can make you sick, and ...

When used correctly, many rapid antigen tests are good at detecting people carrying high levels of the virus. By Emily Anthes In the early months of the pandemic, getting a coronavirus test typically ...

In a recent study posted to the medRxiv preprint* server, researchers pursued evidence of whether severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antigens, of which spike (S) protein is ...