The branch of laboratory medicine that studies blood serum for evidence of infection and other parameters by evaluating antigen-antibody reactions in vitro.
Serology is the scientific study of blood serum. In practice, the term usually refers to the diagnostic identification of antibodies in the serum We can detect antigens too .
Majority Diagnostic tests are Serological tests
There are several serology techniques that can be used depending on the antibodies being studied. These include: ELISA, agglutination, precipitation, complement-fixation, and fluorescent antibodies.