Common question
What do serology tests reveal in the context of testing for COVID-19?
Serology tests detect the presence of antibodies in the blood when the body is responding to a specific infection, like COVID-19. In other words, the tests detect the body’s immune response to the infection caused by the virus rather than detecting the virus itself.
What is a serology test?
Serology tests look for antibodies in blood. If antibodies are found, that means there has been a previous infection. Antibodies are proteins that can fight off infections. Investigations using serology testing are called seroprevalence surveys.
