| unexpectedly low prevalence of helicobacter pylori infection among pregnant women on pemba island, zanzibar. | helicobacter pylori is strongly associated with peptic ulcer and gastric cancer and may be the most common human bacterial infection. the epidemiology of h. pylori has been poorly studied in africa, where its relevance to disease has not been fully appreciated. following a cross-sectional study design, h. pylori infection was measured by (13)c-urea breath test among 857 pregnant women attending antenatal care clinics. location, water use practices, anthropometry, and social and demographic varia ... | 2007 | 17617430 |