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The study was undertaken to analyse the prevalence of Enteric fever in patients with suspected enteric fever, presenting with Pyrexia of unknown origin (PUO), utilizing slide agglutination test (Tydal-Tulip Diagnostics ). Out of 1985 samples received, 542 (27.3 % ) were positive for Enteric fever. The agglutinins to S.typhi were the most prevalent among the sera of various dilutions ( 47% for O antigen and 46.7% for H antigen). The levels of agglutinins for Salmonella paratyphi AH and BH were very low (only 4.8% and 1.5% for the AH and BH antigens respectively).Though statistically insignificant, the incidence of Enteric fever was found to be highest in age group 21-40 years ( 36%) followed by <20 years (30.4%) with a slight female predominance (p value≥0.05).
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Author(s): Bharadwaj VBB Vazhavandal G Uma A Rajalakshmi PC
Antibody titre, Enteric fever, Prevalence, Pyrexia of unknown origin, Salmonella, Slide agglutination