Seroprevalence of anti-Helicobacter pylori and anti-CagA antibodies among healthy children according to age, sex, ABO blood groups and Rh status in south-east of Iran.

Objective: The aim of this study was to evaluate the seroprevalence of anti-H. pylori and anti-CagA antibodies in healthy children and to investigate those relation with age, sex, ABO blood groups and Rh status.

Methods: Serum samples from 386 children (187 males; 199 females), aged 1-15 years were tested for the presence of antibody to H.