Immunoglobulin M (IgM), the largest pentameric immunoglobulin, is a marker of recent primary infection for some diseases. IgM constitutes 5-10% of serum immunoglobulins in adults. IgM has a...
Category: Immunology
Widal test is the most widely used diagnostic test for typhoid fever in developing countries. The Widal test has been in use for more than a century as an aid in the diagnosis of typhoid fever. The...
The complement fixation test is one of the major traditional tests for the demonstration of the presence of specific antigens or antibodies. It requires a veritable zoo of reagents and numerous...
Counterimmunoelectrophoresis (CIE): Principle, Procedure, Uses
Counterimmunoelectrophoresis (CIE) is a modification of the Ouchterlony method that speeds up the migration of an antigen and antibody by applying an electrical current. Principle of CIE Test...
When the specific antibodies (agglutinins) bind to surface antigens of bacteria, virus, or any antigens immobilized in particulate matter (such as latex particle) and cause the formation of...
Enzyme-linked immunosorbent assay (ELISA) is an extremely sensitive test to detect specific antibodies or antigens. Direct ELISA is a test for detecting antigens using specific immobilized...