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Widal Agglutination Test

Widal seroprevalence 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 course of the disease, the body reacts to this antigenic stimulus by producing antibodies whose titers rise slowly in the early stages of the disease 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 "Blepharid H antigen" and "Body antigen C" as well as somatic O and B-antigen H antigens of Salmonella paratyphi A, B and C serotypes.



Important Note

Laboratory test results are the most important parameter for the diagnosis and monitoring of all pathological conditions. 70%-80% of diagnostic decisions are based on laboratory tests. Correct interpretation of 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 interpreted in relation to each individual case and family history, clinical findings and the results of other laboratory tests and information. Your personal 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 we contact your doctor to get the best possible medical care.

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