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Paper Information

Journal:   JOURNAL OF MEDICAL COUNCIL OF I.R.I.   Fall 2001 , Volume 19 , Number 3; Page(s) 175 To 181.
 
Paper: 

EVALUATION OF SENSITIVITY AND SPECIFICITY OF WIDAL TEST IN THE DIAGNOSIS OF TYPHOID FEVER IN KERMANSHAH

 
 
Author(s):  HATAMI H.*, JAMSHIDI F.
 
* Dept. of InfectiousDiseases, Sina Hospital,Kennanshah Univ. of Med. Scien. &Health Serv
 
Abstract: 

Since typhoid fever is one of the most common infectious diseases in our country particularly in the western provinces such as Kermanshah; and the Widai test being one of the most common serologic tests ordered by physicians, thus to evaluate the diagnostic usefulness of this diagnostic tool we undertook a retrospective case control study in 144 patients with blood or bonemarrow culture positive for salmonella typhi (as cases) and144 patients with brucellosis with a Widal test in their hospital files (as controls).
48% of our patients were female, 52% male and 91% less than 35 years old. The Widal test was negative in 60% of cases and 94% of controls (0 titer of
1:40 or more).
The sensitivity of this test in a titer of 1:80 was 38% (less than many other studies) and its specificity was 96% (similar to other studies) and we concluded that a negative Widal test would not exclude the diagnosis of typhoid fever, but a positive Widal test could be highly suggestive of typhoid. Despite its limitations the Widal test remains a valuable and highly specific tool for rapid diagnosis of typhoid fever.

 
Keyword(s): TYPHOID, WIDAL TEST, SENSITIVITY, SPECIFICITY
 
References: 
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