May 25, 2015 · Widal Test is an agglutination test which detects the presence of serum agglutinins (H and O) in patients serum with typhoid and paratyphoid fever. When facilities for culturing are not available, the Widal test is the reliable and can be of value in the diagnosis of typhoid fevers in endemic areas.

Feb 5, 2022 · What is Widal Test? Widal test is an agglutination test used for diagnosis of enteric fever (Typhoidal or Paratyphoidal fever) serologically in clinical/diagnostic laboratories. This tests measure agglutinating serum antibodies level produced against the O (somatic) and H (flagellar) antigen of Salmonella Typhi and Paratyphi A, B, and C.

Mar 7, 2022 · Widal test is a common agglutination test employed in the serological diagnosis of enteric fever. This test was developed by Georges Ferdinand Widal in 1896 and helps to detect presence of salmonella antibodies in a patient’s serum.

Jan 9, 2024 · The Widal test procedure helps identify typhoid fever caused by Salmonella enterica serotype Typhi. Developed by Georges Fernand Isidore Widal in the late 19th century, provided insights into antibodies indicative of exposure to the typhoid-causing bacterium.

Widal test is an easy, cheap, easily accessible and non invasive test to perform. It is of great significance in laboratories where blood cultures facility is not available (the results must be interpreted cautiously, as negative results do not exclude typhoid fever).

It measures agglutinating antibody levels against O and H antigens using serial dilutions of sera. Tube agglutination method is the recommended method of performing the Widal test; where serial two-fold dilutions of the patient’s serum from 1:20 to 1:1280 are tested.

Nov 7, 2023 · The Widal test is a quick screening test for detecting instances of typhoid fever in regions where it is endemic and where enteric fever is common. It enables rapid identification of individuals who may require additional diagnostic assessment or therapy, assisting in illness management early on.

May 14, 2024 · The Widal test is a serological agglutination test that is commonly used in clinical laboratories for the diagnosis of enteric fever, specifically Typhoidal or Paratyphoidal fever. This test measures the level of agglutinating serum antibodies produced against the O (somatic) and H (flagellar) antigens of Salmonella Typhi and Paratyphi A, B, and C.

Feb 16, 2023 · The Widal test is an agglutination test employed in the serological diagnosis of enteric fever. It is also applicable in febrile agglutinin tests. The test is named after Georges Fernand Isidore Widal, a French physician and bacteriologist.

Widal test is an agglutination test in which specific typhoid fever antibodies are detected by mixing the patient’s serum with killed bacterial suspension of Salmonella carrying specific O, H, AH and BH antigens and observed for clumping ie. Antigen-antibody reaction.