This paper argues that vice-charging, the practice of charging other persons with epistemic vice, can itself be epistemically vicious. It identifies some potential vices of vice-charging and identifies knowledge of other people as a type of knowledge that is obstructed by epistemically vicious attributions of epistemic vice. The hazards of vice-charging are illustrated by reference to the accusation that parents who hesitate to give their children the MMR triple vaccine are guilty of gullibility and dogmatism. Ethnographic and sociological research is used to make the case that this charge is, in a significant range of cases, epistemically unjust and hinders attempts to make sense of vaccine hesitancy. This epistemic injustice consists in the representation of vaccine hesitant parents as less than full epistemic agents. A case is made for a more tolerant and inclusive approach, not only to vaccine hesitancy but also to other forms of unorthodoxy or non-compliance. The primary objective in these cases should be to achieve "Verstehen" of seemingly alien outlooks and practices so that policy makers and practitioners in public services can more effectively educate a sceptical public about the risks of vaccine hesitancy.