title: The Widal slide agglutination test, a valuable rapid diagnostic test in typhoid fever patients at the Infectious Diseases Hospital of Jakarta.
abstract: The Widal slide agglutination test was evaluated as a rapid diagnostic test in typhoid fever patients at the Infectious Diseases Hospital, Jakarta, Indonesia from 1980-1982. The results of the test can be available within 45 minutes of patient admission. The study showed that, among 229 patients with Salmonella typhi-positive typhoid fever and 179 control fever patients, when the Widal O antibody titer was greater than or equal to 1:20 the sensitivity was 53%, the specificity 98%, the positive predictive value 96%, and the negative predictive value 68%. A negative Widal test (O antibody titer less than 1:20) does not provide useful information, but when the O antibody titer is greater than or equal to 1:20 the clinician at the Infectious Diseases Hospital of Jakarta can be 96% certain that the patient has typhoid fever.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000906:Antibodies / Q000302:isolation & purification; D002648:Child; D002675:Child, Preschool; D005069:Evaluation Studies as Topic; D005260:Female; D006386:Hemagglutination Tests / Q000379:methods*; D006760:Hospitalization; D006801:Humans; D007214:Indonesia; D008297:Male; D008875:Middle Aged; D014435:Typhoid Fever / Q000175:diagnosis* / Q000276:immunology
chemical_list: D000906:Antibodies