title: [Studies of diseases caused by hepatitis B virus on the island of Favignana].
abstract: 731 serum samples were drawn from inhabitants of Favignana (Egadi Islands, total population 3,000). Presence of HBsAg and anti HBs was tested by R.I.A. Although only two cases of B Virus Hepatitis had been observed in the last 3 years, the overall positivity for HBsAg was 4.8% and for anti HBs 31.6%, showing a distribution by age and sex comparable to that observed in similar studies. The rather high prevalence of HBsAg in males over 70 deserves further investigations.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002353:Carrier State / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006509:Hepatitis B / Q000453:epidemiology*; D006510:Hepatitis B Antibodies / Q000032:analysis; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D007223:Infant; D007558:Italy; D008297:Male; D008875:Middle Aged
chemical_list: D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens
vernacular_title: Indagini sulle affezioni da HBV nell'isola di Favignana.