By 1980, America had embraced vaccination as an effective tool against deadly childhood diseases. With the fear of diseases waning, public attention shifted from the dangers of pertussis to the side effects of the vaccine. A tendentious documentary on DTP ignited the firestorm over vaccine safety, which sowed discord among parents, casting doubt on public health officials and the medical establishment. This controversy embodied America’s enduring conflict between individual rights and shared responsibilities, presaging the rising anti-vaccine movement and the uncertain future of children’s health.