Abstract
Initial standardization of the ELISA test for the presence of immunoglobulin (Ig) class IgG anti_H. pylori in serum will be tested with control sera of 10 patients infected admittedly, and 10 uninfected, determined by gold standard (histology and rapid urease test positive and/or culture positive). Antigenic preparation: Sonication whole cell 50 samples (25 adults and 25 children) of isol…