Rate, intensity, and duration of local reactions to a virosome-adjuvanted vs. an aluminium-adsorbed hepatitis A vaccine in UK travellers.

Background: Travellers increasingly require hepatitis A virus (HAV) vaccine for overseas travel to highly endemic areas. While the inactivated HAV vaccines currently in use are all highly immunogenic, studies have shown the aluminium-free, virosome-adjuvanted vaccine Epaxal to possess a superior local tolerability profile. The objective of this study was to analyse the pattern of local reactions caused by the aluminium-free Epaxal compared with an aluminium-adjuvanted HAV vaccine.

Comparison of two combined vaccines against typhoid fever and hepatitis A in healthy adults.

A prospective, randomised, observer-blind, comparative study was performed in healthy adults with a new hepatitis A/typhoid combined vaccine, Viatim, and the marketed Hepatyrix vaccine. Both vaccines induced high levels of protective antibodies, but typhoid responses were higher and hepatitis A responses more rapid with Viatim compared with Hepatyrix. Both vaccines were well tolerated, no serious adverse events (SAEs) occurred, but more Viatim vaccinees had more mild or moderate local reactions (82.