In most public health communications about vaccination, officials gloss over vaccine risks, dismissing any possible “side effects” as mild. However, vaccination programs have always resulted in more serious vaccine injuries for some. In the 1970s and early 1980s, for example, the diphtheria-pertussis-tetanus (DPT) vaccine and its whole-cell pertussis component had chalked up so much vaccine damage that a television documentary likened receiving a DPT shot to playing “vaccine roulette.”