title: [Do patients with duodenal ulcer transmit Helicobacter pylori to their relatives?].
abstract: The prevalence of IgG antibodies to Helicobacter pylori was determined with an enzyme-linked immunosorbent assay in 80 families who lived together with 40 duodenal ulcer patients in whom Helicobacter pylori had been cultured from a gastric biopsy (34 spouses, 31 children, 10 parents, 4 sisters and 1 brother) and in 112 controls from the same habitat and with similar age. The antibodies were positive in 38.4% of the relatives and in 36.6% of the controls, the difference was not significant. Among spouses of patients, 38.4% of those aged 25-39 years and 66.6% of those aged 40-67 years were positive, whereas controls showed a 29.2% and a 58.3% of positives respectively. The differences between both groups were not significant. Among children, 17.2% were positive and in parents 50%, whereas among controls with a similar age 26.3% and 62.5% respectively were positive. The differences between relatives and controls were not significant. We conclude that in our environment among consanguineous families living together and between spouses, person-to-person spread of Helicobacter pylori does not usually occur or it happens uncommonly.
authors.affiliation: Sección de Aparato Digestivo, Hospital Lluis Alcanyis, Xátiva, Valencia.
authors.forename: V
authors.initials: V
authors.lastname: Alfonso
authors.forename: D
authors.initials: D
authors.lastname: González-Granda
authors.forename: C
authors.initials: C
authors.lastname: Alonso
authors.forename: J
authors.initials: J
authors.lastname: Ponce
authors.forename: M
authors.initials: M
authors.lastname: Bixquert
authors.forename: C
authors.initials: C
authors.lastname: Oltra
authors.forename: E
authors.initials: E
authors.lastname: Roig
authors.forename: J A
authors.initials: JA
authors.lastname: Ortuño
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000907:Antibodies, Bacterial / Q000097:blood; D016022:Case-Control Studies; D004381:Duodenal Ulcer / Q000150:complications / Q000382:microbiology*; D005192:Family Health; D005260:Female; D016481:Helicobacter Infections / Q000150:complications / Q000453:epidemiology / Q000635:transmission*; D016480:Helicobacter pylori / Q000276:immunology; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D016036:Seroepidemiologic Studies
chemical_list: D000907:Antibodies, Bacterial; D007074:Immunoglobulin G
vernacular_title: Los pacientes con úlcera duodenal transmiten el Helicobacter pylori a sus familiares?