Obese people have an altered immune responsiveness. The present study investigates whether
this influences immune responses to booster vaccinations (i. e. booster vaccination with TBE
vaccine "FSME Immun") and if a modification of vaccination schedules is needed.
Obese adults (BMI >30) >18 - 60 years are compared with adults with normal weight (BMI <25)
concerning TBE-NT- antibody titers, TBE- NT antibody titer course and cellular immunity.
Metabolic parameters and sexual hormones will be tested and compared as well.