Reactogenicity and immunogenicity of three different lots of a hepatitis A vaccine. 1992

L Theilmann, and B Kallinowski, and K Gmelin, and F Hofmann, and N Scheiermann, and B Wohland, and H Stickl, and H Maiwald, and F K Moriabadi, and H L Bock
Medizinische Universitätsklink, Heidelberg, Germany.

To study the immunogenicity and reactogenicity of an inactivated hepatitis A vaccine, 204 healthy individuals were randomized into three equal groups, each to receive a different vaccine lot. Each subject received a total of three doses, each of 720 ELISA units of hepatitis A vaccine HM175, according to a 0 and 1 month primary vaccination schedule, with a booster dose given at month 6. Side effects were low and were < 30% after the second injection. All subjects but one had antibodies to hepatitis A virus two months after the first dose of vaccine. At month 6 all vaccinees had seroconverted. There were no differences between the three vaccine lots with respect to side effects, seroconversion rates and geometric mean titre of antibodies. We conclude that the three lots of inactivated hepatitis A vaccine are safe, well tolerated and equally immunogenic.

UI MeSH Term Description Entries
D007115 Immunization Schedule Schedule giving optimum times usually for primary and/or secondary immunization. Immunization Schedules,Schedule, Immunization,Schedules, Immunization
D007117 Immunization, Secondary Any immunization following a primary immunization and involving exposure to the same or a closely related antigen. Immunization, Booster,Revaccination,Secondary Immunization,Booster Immunization,Booster Immunizations,Immunizations, Booster,Immunizations, Secondary,Revaccinations,Secondary Immunizations
D008297 Male Males
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D005260 Female Females
D005858 Germany A country in central Europe, bordering the Baltic Sea and the North Sea, between the Netherlands and Poland, south of Denmark. The capital is Berlin.
D006506 Hepatitis A INFLAMMATION of the LIVER in humans caused by a member of the HEPATOVIRUS genus, HUMAN HEPATITIS A VIRUS. It can be transmitted through fecal contamination of food or water. Hepatitis, Infectious,Infectious Hepatitis,Hepatitides, Infectious,Infectious Hepatitides
D006507 Hepatovirus A genus of PICORNAVIRIDAE causing infectious hepatitis naturally in humans and experimentally in other primates. It is transmitted through fecal contamination of food or water. HEPATITIS A VIRUS is the type species. Hepatitis Virus, Infectious,Infectious Hepatitis Virus,Hepatitis Viruses, Infectious,Hepatoviruses,Infectious Hepatitis Viruses
D006508 Hepatitis Antibodies Immunoglobulins raised by any form of viral hepatitis; some of these antibodies are used to diagnose the specific kind of hepatitis. Antibodies, Hepatitis
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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