A study of Widal test in typhoid fever and in healthy population

Abstract

Introduction: Patients often receive antibiotics prior to blood culture sampling. So widal test is most widely used method for diagnosis of typhoid fever. Its popularity seems from the fact that it is simple to use and inexpensive. As the clinical features of typhoid fever are not always diagnostic and blood cultures for typhoid are falsely negative in many cases, widal test still has a role in the diagnosis. The cutoff level for widal test positivity has still not been established in Nepal This study will help in adding knowledge regarding this.The purpose of the study is to test the predictive values of positive serology for the population and to identity the specificity of the Widal test at various dilutions.