Precision Widal Kit

CombiWidal- S antigens are the standardized smooth suspension of killed bacterial antigens of qualitative and semi-quantitative detection of S. typhi and S.paratyphi antibodies. The different floor to each antigen facilitates the differentiation of antigen and clear reading of agglutination. It also avoids the possible error or mixing and /or misinterpretation., As undiluted serum is used in Slide Test, it is a simple, rapid and convenient screening test, the slide test antigen are standardized in such a way that they can be used for either slide or tube technique. In doubtful cases, it is recommended to perform the tube technique for obtaining conclusive results. A marked rise in the titre to one sero type (above 1:80) suggests infection Diagnostically a rising antibody tire of at least four fold (two tube difference) is considered more significant than a single test. It is observed that individuals immunized with TAB vaccine may show a moderately high titre for all antigens.