FREQUENCY OF SALMONELLA ANTIBODIES AMONG FEBRILE PATIENTS WITH SUSPECTED ENTERIC FEVER

Mohammed Sheet Saleh, Madha; A Mahmud, Shayma

	FREQUENCY OF SALMONELLA ANTIBODIES AMONG FEBRILE PATIENTS WITH SUSPECTED ENTERIC FEVER
AL-TAQANI
Article 1, Volume 26, Issue 3, 2013, Pages 0-0
Authors
Madha Mohammed Sheet Saleh; Shayma A Mahmud
Abstract
Iraq is an endemic area with Salmonella, hence most population are with high Salmonella-specific antibody titer due to their continuous exposure to this bacterium. This study was conducted from June 2010 to May 2011 on outpatients in public hospitals in Baghdad city to evaluate Widal test as a diagnostic kit for enteric fever using serum of 200 febrile patients at ages from 9 to 66 of both sexes. The overall seroprevalence of anti-O for Salmonella typhi was 56% (35% for females and 21% for males). Out of this rate, 3% were with only anti-O for S typhi, 9% were with anti-O and anti-H for S typhi, 27% were with anti-O (with or without anti-H) for S typhi plus anti-H for S paratyphi A or B, and 17 % were with anti-O (with or without anti-H) for S typhi plus anti-O (with or without anti-H) for S paratyphi A or B. The frequency of anti-O for S paratyphi was 1% for group A only, 24% for group B only and 1% for both A + B. For the old infections that were presented with only anti-H antibodies, the seroprevalence rate was 3% for S typhi only, and from 1-4% for other types of Salmonella or mixed infections. Concerning the seasonal variations, the highest rate of seroprevalence (40%) was in spring season and the lowest one (10%) was in winter season. In conclusion, using one sample Widal serology with a cut-off positive value of 160 and more is a valuable test for the diagnosis of enteric fever in highly endemic areas as the city of Baghdad. Worth to mention that most cases with confirmed enteric cases results (using one sample Widal serology) were of mixed origin of infection with S typhi and S paratyphi serotypes.

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