I tilfælde, hvor de monovalente hepatitis A - og hepatitis B- vacciner blev administreret sammen med specifikke immunoglobuliner, sås ingen påvirkning af serokonverteringen, skønt det kan resultere i lavere antistoftiter.
However, when the monovalent hepatitis A and hepatitis B vaccines were administered concomitantly with specific immunoglobulins, no influence on seroconversion was observed although it may result in lower antibody titres.