Widal agglutination test was introduced as a serologic technique to aid in diagnosis of typhoid fever. The test was based on demonstrating the presence of agglutinin (antibody) in the serum of an infected patient, against the H (flagellar) and O (somatic) antigens of Salmonella typhi.
How widal test is done?
The Widal test measures the capacity of antibodies against LPS and flagella in the serum of individuals with suspected typhoid fever to agglutinate cells of S. ... Instead of using the antigen to test for antibodies in the serum as in the Widal test, antibodies (either polyclonal or monoclonal) have been used to detect S.
Outstanding batch to batch consistency.
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