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seroprevalence of helicobacter pylori in chile: vegetables may serve as one route of transmission.helicobacter pylori infection is very common in chilean adults, but the age-related prevalence, risk factors for infection, and mode of transmission in chilean children are unknown. an elisa was used to test for h. pylori antibodies in 1815 chileans < 35 years of age. seropositivity was > 60% in lower socioeconomic groups. h. pylori seropositivity correlated with increased age, low socioeconomic status, and consumption of uncooked vegetables by use of a logistic regression analysis. risk factors ...19938515115
tetracycline resistance in chilean clinical isolates of helicobacter pylori.since high-level tetracycline resistance in helicobacter pylori has been associated with a aga926-928-->ttc substitution in the 16s rrna genes rrna/b, the aim of the study was to screen for tetracycline resistance in h. pylori clinical isolates obtained from santiago, chile by using a recently reported molecular assay.201020035020
helicobacter pylori gastritis in children is associated with a regulatory t-cell response.helicobacter pylori infection in children infrequently causes gastroduodenal mucosal ulceration. because h pylori induces t-cell dependent gastric inflammation in adults and t regulatory (treg) cells suppress t-cell-dependent pathology, we evaluated gastric histopathology and treg cell responses in h pylori-infected children and adults.200818242215
helicobacter pylori vaca s1a and s1b alleles from clinical isolates from different regions of chile show a distinct geographic distribution.to establish the most common vaca alleles in helicobacter pylori (h pylori) strains isolated from chilean patients and its relationship with gastritis and gastroduodenal ulcers.200516419167
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