Prevalence of Positive Widal test in comparison with clinical request in a tertiary care teaching hospital, West Bengal
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2018, Vol 17, Issue 11
Abstract
Introduction: Enteric fever which includes typhoid and paratyphoid fever is a systemic febrile illness caused by the bacterium Salmonella entericaserovartyphi and paratyphi A, B, C respectively. Widal test is almost the most widely used method for diagnosis of typhoid fever in many developing countries.Objectives: 1. To know the percentage of positivity of Widal test. 2. To know the common age group affected. 3. To know the titres of S.typhi ‘O’ and ‘H’, S. paratyphiA ‘H’ and S. paratyphi B ‘H’ antibodies. Methodology: It is a prospective study conducted at the Central laboratory of Department of Microbiology, Malda Medical College, West Bengal. We haveanalysed all requests during last one year from September 2017 to August 2018. Sera, obtained from patient, we have done widal tube agglutination test. Results: Total 10267 Widal test conducted from September 2017 to August 2018, in one year. 1576 subjects were found Widal test positive. Positivity rate of widal test found 15.35%. 759 (48.16%) positive cases were male and 817 (51.84%) positive cases were female. Male: Female ratio was 0.92: 1. Common age group affected amongst both male and female was 21 to 30 years. Maximum positive antibody titre seen against S.typhi ‘O’ antigen was (65.4%). 1: 80 titre, 1: 160 titre and 1: 320 antibody titre against Salmonella typhi ‘O’ antigen were found in 739 (71.6%), 249 (24.1%) and 44(4.3%) patients respectively. No antibody titre positivity seen in 1: 640 dilution. Conclusion: Widal test is very cheap, simpler, widely used tool for diagnosis of typhoid fever. Typhoid fever remains an important public health problem in developing countries. Proper sanitation, public health education, awareness and vaccinations are the long term preventive measures to decrease or control the disease.
Authors and Affiliations
Dr. Puranjay Saha, Dr. Arnab Kumar Mandal, Dr. Tapati Mondal, Prof. Pratip Kumar Kundu
Keywords
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