If you are having symptoms of high fever, fatigue, diarrhoea, constipation, abdominal pain, rashes known as rose spots, dry cough, and headache, there is a probability of typhoid fever. Doctors suggest Widal test in the diagnosis of typhoid fever. Salmonella enterica serotype typhi bacteria cause typhoid fever. The infection occurs due to the consumption of contaminated food and water with faecal matter. Widal test means to detect typhoid causing bacteria in the bloodstream of the patient through the agglutination biochemical test.
Often, people search for the full form of Widal. The fact is, Georges Ferdinand Widal developed the test, and so the name of the test is called the Widal test after him. A Widal test is used to investigate the presence of H and O serum agglutinins in the patient?s serum.
No special preparation is needed for this test.
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The typhidot test becomes positive within 2-3 days of infection and separately identifies IgM and IgG antibodies.
When the test report lies in the Widal test normal range chart, then it is negative for the typhoid fever. If the titre value is less than or equal to 1:20, 1:40, 1:80, and less than 1:160 in the test report, then the typhoid test result lies in Widal test normal value.
The interpretation of the Widal test results report needs careful study. Widal blood test is both qualitative and quantitative diagnostic analysis. A Widal test report is more commonly known as the typhoid test report. If the Widal test range is more than or equal to 1:160 titre for antigen O and antigen H, then it indicates typhoid infection. For the diagnosis of a Widal blood test, 1:20, 1:40, 1:60, 1:80, 1:160, and 1:200 titres need to be included in the diagnosis to obtain the typhoid test report.
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