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854 sera collected from blood donors in Guadeloupe were screened for Helicobacter pylori immunoglobulin G antibodies by a commercial enzyme-linked immunosorbent assay kit. The overall prevalence was 55.2%; it increased significantly with age from 36.1% at 18-19 years to 63.7% at 50-59 years (P = 0.003).
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Weill et al. (2002) studied this question.
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