Quantitative Viral Serology
A serology blood test is used to determine if there are certain
antibodies, IgG or IgM, in your blood that react with certain substances
called COVID-19 antigens. The presence of antibody indicates the
patient has been infected or vaccinated. At this time, it is not known what
proportion of the population has antibodies to COVID-19. When
antibodies are found in your blood it is part of a picture that your
physician can use to aid in determining whether you have had a
COVID-19 infection or a response to a vaccine.
1-Why is serology testing important for COVID-19?