Radioimmunoassay (RIA) is very sensitive (can detect at a concentration of <0.01 μg/mL) and a specific technique that is used for the quantitative detection of antigens or haptens. RIA is an extremely important tool in […]
When a person is infected with a pathogen, antibodies are produced against many epitopes of this pathogen. A subset of these antibodies can block infection by a process called neutralization. These antibodies block or distort the […]
The indirect fluorescent antibody test (IFA) is a semi-quantitative, sensitive, and rapid test to detect which can be used to detect specific antibodies or antigens present in the samples. IFA for the detection of Antibodies […]
Detection of specific antigens present in the sample (blood, urine, CSF or stool) using immunologic methods such as precipitin tests, particle agglutination tests, immunofluorescence, immunochromatographic or enzyme immunoassays are the mainstay for the rapid diagnosis […]
Antibodies are glycoproteins produced by our body in response to invading organisms or toxins (antigens). When a pathogen (bacteria, virus, protozoa or helminth) enters our body and anyhow manages to reach our blood stream, antigen […]
Enzyme-linked immunosorbent assay (ELISA) is extremely sensitive test that is used to detect specific antibodies or antigens. The direct ELISA is a test for the detection of antigen using specific immobilized antibody. In this procedure, […]
Enzyme-linked immunosorbent assay (ELISA) test is the most widely used type of immunoassay. ELISA is a rapid test used for detecting or quantifying antibody (Ab) against viruses, bacteria and other materials or antigen (Ag). ELISA is so named […]
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