title: [HBsAg in the prevention of post-transfusion hepatitis. General notes and data on the incidence in Umbria].
abstract: What is known about HBsAg and its usefulness in the prevention of post-transfusion hepatitis is briefly discussed. Personal data concerning its presence in the population of Umbria by application of electrosyneresis and inverse haemagglutination techniques are presented. As usual, the latter technique proved more reliable.
mesh_terms: D001782:Blood Donors; D003378:Counterimmunoelectrophoresis / Q000379:methods; D005189:False Positive Reactions; D006385:Hemagglutination Inhibition Tests; D006509:Hepatitis B / Q000453:epidemiology / Q000276:immunology / Q000517:prevention & control*; D006514:Hepatitis B Surface Antigens / Q000008:administration & dosage*; D006801:Humans; D007558:Italy; D065227:Transfusion Reaction
chemical_list: D006514:Hepatitis B Surface Antigens
vernacular_title: L'HBsAg nella prevenzione della epatite post-trasfusionale. Considerazioni generali e dati sulla sua incidenza in Umbria.