title: [Epidemiology of acute hepatitis among outpatients in the urban community of Lyon, 1983].
abstract: We conducted in 1983 an hepatitis surveillance programme in collaboration with 93% of the medical analysis laboratories in Lyons' urban area (1,100,000 inhabitants) and diagnosed 1,002 cases of acute hepatitis (incidence : 90.5 cases/10(5) inhabitants; HAV : 50.4 cases/10(5) inhabitants; HBV : 12 cases/10(5) inhabitants; non A non B : 24 cases/10(5) inhabitants; drugs : 4.2 cases/10(5) inhabitants). HBs Ag was undetectable in 12% of acute hepatitis B. Hepatitis A accounted for 91% of children's cases and 48% of cases among adults between 20 and 40 years old. Epidemics were observed among children after summer holidays related to the return of migrants from trips to their native country. For acute hepatitis B and non A non B, classical epidemiological data were observed, but the prevalence of drug addicts and homosexuals was low.
mesh_terms: D000328:Adult; D000553:Ambulatory Care; D056486:Chemical and Drug Induced Liver Injury / Q000453:epidemiology / Q000209:etiology; D002648:Child; D005602:France; D006505:Hepatitis / Q000453:epidemiology* / Q000209:etiology; D006525:Hepatitis, Viral, Human / Q000453:epidemiology / Q000209:etiology; D006801:Humans; D011159:Population Surveillance; D014505:Urban Population
vernacular_title: Epidémiologie des hépatites aiguës survenues chez des malades ambulatoires dans la communauté urbaine de Lyon, en 1983.