[WSIS "Biomed" S. A. in Cracow--vaccinations against some widespread infectious diseases]

The history, present practice and perspectives of vaccination against some widespread infectious diseases are discussed, with special focus on the role of booster vaccination. It is noted that the level of protective antibodies against diphtheria and pertussis falls within years after vaccination. In case of diphtheria, with the current vaccination scheme existing in Poland, population over 30 years old shows significant susceptibility to the infection, which could be effectively reduced by booster vaccination of adults in 10 years intervals. Vaccination of infants against pertussis was accompanied by growing morbidity in elder children and adults. At present, introducing another dose of pertussis vaccine, preferably acellular, at 5 years age is suggested. Hepatitis B remains significant problem in Poland and world-wide, but current vaccination policy gives opportunity to reduce its incidence. Existing vaccines appear highly effective, and the immunity is long lasting.