As children were being vaccinated at schools, doctors found that some of them who’d received their shots went on to contract polio anyhow, then spread it to family members and neighbors. After these cases were traced to vaccines produced by Cutter Laboratories of Berkeley, California, an investigation revealed that the company had accidentally released doses containing dangerous live viruses. Tens of thousands of people were sickened, 200 were paralyzed, and 10 died. Most were schoolchildren.
Oooooooooookay....