Anterior uveitis is associated with travoprost.

An association was found between gastroenteritis and subsequent acquisition of H pylori infection in cohabiting young people. Despite the limitations of the non-invasive test used to determine the presence of H pylori, time and space clustering shows that conversions were not observed by chance. This chronological link suggests that, under usual conditions of life, there might be a causal link between outbreaks of gastroenteritis and transmission of H pylori. We thank Marie-Jeanne Capron, Christine Guillemant, and the nursing staff of Centre Antoine de Saint-Exupéry, Vendin-leVieil, for help during the study, Danielle Samaille, Institut Pasteur de Lille, for transport of samples, and M Simonet for critical reading of the manuscript. Contributors: RL performed the literature search, data collection, and biological and epidemiological analysis and interpretation, and drafted the report. PV was the academic supervisor of RL. PV initiated the project, was responsible for funding and design, organised the collection of samples, helped interpret the results, and wrote and revised the report; he will act as guarantor for the paper. PhP and PP were responsible for the care of the patients and management of the institution. FG was involved in the design of the study and advised onmedical issues and discrepancies during the study. All authors critically analysed the data and wrote the paper. Funding: RL received a scholarship from Laboratoire Gallia. Competing interests: None declared. Ethical approval: This study was approved by the local ethics committee, Vendin-le-Vieil.