Widal agglutination test is used as an initial screening test for the diagnosis of typhoid fever.
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Typhoid fever occurs when pathogenic microorganisms such as Salmonella typhi, Salmonella paratyphi A, Salmonella paratyphi B, and Salmonella paratyphi C infect the human body. During the disease, the body reacts to this antigenic stimulus by producing antibodies whose titers rise slowly in the early stages to a peak and then slowly fall until they are undetectable. Antibodies against Salmonella can be detected in the patient's serum from the second week after infection. Information on antibody titers and whether or not they are high or low can be obtained by performing the Widal serological assay using various antigens. Includes S. typhi antigens "Flagelar H antigen, " "Somatic O antigen," and somatic O and flagelar H antigens of Salmonella paratyphi A, B, and C serotypes.
Important Note
Laboratory test results are the most critical parameter for diagnosing and monitoring all pathological conditions. Between 70 to 80% of diagnostic decisions are based on laboratory tests. Correctly interpreting laboratory results allows a doctor to distinguish "healthy" from "diseased."
Laboratory test results should not be interpreted from the numerical result of a single analysis. Test results should be analyzed based on each case and family history, clinical findings, and the results of other laboratory tests and information. Your physician should explain the importance of your test results.
At Diagnostiki Athinon, we answer any questions you may have about the test you perform in our laboratory and contact your doctor to ensure you receive the best possible medical care.
