Widal test


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Synonyms for Widal test

a test for detecting typhoid fever and other salmonella infections

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References in periodicals archive ?
Typhidot M and Diazo test vis-a-vis blood culture and Widal test in the early diagnosis of typhoid fever in children in a resource poor setting.
On laboratory investigation, 98 children were found positive for either Widal test or blood culture or positive for both the tests.
Comparative study of dot enzyme immunoassay (Typhidot-M) and Widal test in the diagnosis of typhoid fever.
Available serologic tests, including the Widal test, have limited value because of poor sensitivity and specificity for typhoid diagnosis, and difficulty with standardizing reagents and interpreting values across different settings.
Widal test was performed which showed a titre of 80 against 'O' (somatic) antigen and 160 against 'H' (flagella) antigen of Salmonella Typhi (recommended cutoff titres in our hospital is [greater than or equal to] 1:80 and [greater than or equal to] 1:160 for the 'O' and 'H' antigens respectively).
All patients presenting with fever having positive Widal test and/or positive culture for Salmonella were included.
A Widal test on the same day was positive with a titre of 1:3 200 (O antigen).
The commonly used Widal test for diagnosis of typhoid fever needs to be interpreted with caution in endemic areas where anti-O and anti-H antibodies are already present in the population as a result of past subclinical infections with salmonella species, enterobacteriaceae, malaria, etc.
Laboratory results of peripheral microscopic examination for malaria parasite using Jasvant Singh & Bhattacherji (JSB) thick and thin smears staining technique and rapid screening Widal test, done on blood samples of patients of Varkana village were obtained from PHC Rani.
The results of viral serologic testing, including that for Epstein-Barr virus (EBV), cytomegalovirus (CMV), parvovirus B19, human immunodeficiency virus (HIV), and hepatitis A, B, and C, were negative, as were the results of the Widal test for Salmonella and the Wright agglutination test for Brucella.
Data on Widal test and blood culture was obtained from microbiology department.
All the cases diagnosed were confirmed with either blood culture growth for Salmonella typhi or a fourfold rise in the antibody titer by Widal test.
The Widal test antigen H was added to the both controls and a drop of O H AH and BH antigens were added to the remaining four circles already added with patient serum.
Blood culture showed no growth and WIDAL test was negative.