title: [Collection of anti-HBs hyperimmune plasma: stimulation by Genhevac B in weakly immunized donors].
abstract: The need for anti HBs globulin is still important in spite of the development of the HBs vaccination. Twenty-two plasma donors, immunized against Hepatitis B virus (HBV) with titers of anti HBs between 100 and 6,000 milli International Units per ml (mUI/ml), received two injections of Genhevac B Pasteur at a one-month interval, and a third injection two months later whenever the answer was still under 6,000 mUI/ml, which is the minimum necessary in order to obtain a specific globulin compatible with the National Standard (100 UI/ml) from plasma fractions. In this programme, no severe adverse reaction was documented, and the mean rate of anti HBs rose from 1,322 to 35,173 mUI/ml, with a mean multiplying factor of 20.2. This result was reached after the first injection in "responders"; the third injection did not increase the titer in "non responders". The titer was still above 6,000 mUI/ml after six months in all the donors with more than 1,500 mUI/ml before vaccination. This limit is suggested to select plasma donors for vaccination, and a booster injection could be proposed every six months.
authors.affiliation: Poste de transfusion sanguine, Hôpital Bichat, Paris.
authors.forename: M
authors.initials: M
authors.lastname: Branger
authors.forename: A
authors.initials: A
authors.lastname: Elias
authors.forename: L
authors.initials: L
authors.lastname: Vitrano
authors.forename: P
authors.initials: P
authors.lastname: Jaulin
mesh_terms: D000328:Adult; D001782:Blood Donors; D005260:Female; D006510:Hepatitis B Antibodies / Q000096:biosynthesis / Q000097:blood / Q000302:isolation & purification*; D017325:Hepatitis B Vaccines / Q000276:immunology*; D006515:Hepatitis B virus / Q000276:immunology*; D006801:Humans; D007106:Immune Sera / Q000302:isolation & purification*; D007117:Immunization, Secondary; D008297:Male; D008875:Middle Aged; D010956:Plasmapheresis; D014611:Vaccination; D014614:Vaccines, Synthetic / Q000276:immunology
chemical_list: C075656:GenHevac B Pasteur; D006510:Hepatitis B Antibodies; D017325:Hepatitis B Vaccines; D007106:Immune Sera; D014614:Vaccines, Synthetic
vernacular_title: Collecte de plasma hyperimmun anti-HBs: stimulation par Genhevac B chez les donneurs faiblement immunisés.