Hepatitis B testing can show whether you have a current or past HBV infection and whether you have antibodies from a hepatitis B vaccine. Hepatitis B is a viral infection caused by the hepatitis B ...

EVANSTON, IL — Is it possible you were infected with a mild form of COVID-19 and didn’t know it? How robust is your body’s immune response to the vaccine, and how will we know whether we’ve reached ...

"We feel this pressure because we want to help people." Antibody tests, which reveal whether someone has been infected with the novel coronavirus, have been touted as key to reopening the economy and ...

Statewide blood testing for COVID-19 has found that only 2% of Virginians had antibodies to the virus as of mid-August. The result has prompted the researchers to conclude that herd immunity in ...

The hepatitis A virus (HAV) antibody (AB) total test identifies both types of antibodies that the body produces in response to HAV infection. A reactive result means the test has detected HAV ...

A screening test can determine if a person has an infection with hepatitis B. It involves a blood test that detects antigens and antibodies for hepatitis B virus (HBV). Hepatitis B, or hep B, is a ...