Seropositivity to Helicobacter pylori and CagA protein in schoolchildren of different ages living in urban and rural areas in southern Estonia.

ObjectiveTo evaluateHelicobacter pyloriand CagA seropositivity in a non-selected group of schoolchildren in southern Estonia, with reference to previous studies where high seroprevalence toH. pylori(87%) and anti-CagA positivity (63%) in an adult population from the same region were found.Study popu