title: A randomised comparison of two inactivated hepatitis A vaccines, Avaxim and Vaqta, given as a booster to subjects primed with Avaxim.
abstract: To investigate whether Vaqta may be used as a booster in subjects primed with Avaxim, 127 adults primed 6 months previously with Avaxim were randomised to receive either Vaqta or Avaxim as a booster. Prior to the booster all subjects were seropositive. Geometric mean antibody titres increased from 496 to 7262 mIU/mL 1 month after receiving Vaqta as a booster and from 325 to 5131 mIU/mL 1 month after receiving Avaxim as a booster. Both vaccines were well tolerated; 20.3% of subjects receiving Vaqta experienced a local reaction, compared to 39.7% of those receiving Avaxim. Systemic reactions were reported by 15.6% of those receiving Vaqta and 14.3% of those receiving Avaxim. Vaqta may be used as a booster in subjects primed with Avaxim.
authors.affiliation: MASTA, 29 Harley Street, W1N 1DA, London, UK.
authors.forename: P
authors.initials: P
authors.lastname: Clarke
authors.forename: N
authors.initials: N
authors.lastname: Kitchin
authors.forename: F
authors.initials: F
authors.lastname: Souverbie
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006506:Hepatitis A / Q000517:prevention & control; D035922:Hepatitis A Antibodies; D022362:Hepatitis A Vaccines / Q000008:administration & dosage / Q000009:adverse effects / Q000276:immunology*; D006508:Hepatitis Antibodies / Q000096:biosynthesis; D006507:Hepatovirus / Q000276:immunology; D006801:Humans; D007115:Immunization Schedule; D007117:Immunization, Secondary / Q000379:methods*; D008297:Male; D008875:Middle Aged; D011897:Random Allocation; D015164:Vaccines, Inactivated / Q000008:administration & dosage / Q000009:adverse effects / Q000276:immunology
chemical_list: D035922:Hepatitis A Antibodies; D022362:Hepatitis A Vaccines; D006508:Hepatitis Antibodies; D015164:Vaccines, Inactivated