World Health Organization. Regional Office for Europe2022-01-052022-01-052017-12-31WHO/EURO:2017-4683-44446-62833https://iris.who.int/handle/10665/350968100 p.Health professionals are the single most important influence on whether individuals decide to havethemselves or their children vaccinated; therefore, information and education for health professionals areessential. The aim of this training manual is to present “state-of-the-art”, authoritative, scientifically validadvice to counter common misperceptions of vaccination.enVaccinesImmunizationTechnical Documents