title: [Infection by hepatitis B virus among expatriates].
abstract: Anti-Hbs antibodies have been sought in 545 expatriates having a total sojourn in endemic areas of 3,340 years. The results permit evaluating the frequency of contaminations in endemic areas at 1 for 175 year-expatriates, while it is 1 for 700 year-subjects in the not-expatriate group. This risk seems to justify vaccination against hepatitis B of persons who are to be assigned for long periods in endemic areas.
mesh_terms: D000352:Africa, Northern / Q000208:ethnology; D005602:France; D006509:Hepatitis B / Q000453:epidemiology* / Q000276:immunology; D006510:Hepatitis B Antibodies / Q000032:analysis*; D006801:Humans; D007194:India / Q000208:ethnology; D007564:Japan / Q000208:ethnology; D012306:Risk; D014744:Vietnam / Q000208:ethnology
chemical_list: D006510:Hepatitis B Antibodies
vernacular_title: Etude sur la contamination par le virus de l'hépatite B chez les expatriés.