Smallpox inoculations began in the early 1700s. Cotton Mather, the Puritan minister, promoted them. At this time this was a dangerous practice, since the doctor would lance open a wound and put in scabs or even pus from a smallpox victim. The procedure gave you smallpox, but usually a mild form. Some people died, but not nearly as many as those who were not inoculated and caught the disease.
Ben Franklin, concerned about the cost of the procedure, established a society to inoculate the poor for free. Washington ordered his troops inoculated, and Jefferson inoculated himself and his children.
In 1796 an English doctor named Jenner realized that people infected with cowpox, a different disease, were also immunized against smallpox, and those inoculations were not dangerous.
The UN and other organizations launched a world-wide effort to eradicate the disease, and in 1980 the World Health Organization announced that smallpox had been eliminated. I got my immunization long before that . My grandson doesn’t have a smallpox vaccination scar. There’s no need.
Measles has not been eradicated. A kid just died from measles in Texas because his parents believed that Robert Kennedy, Jr., was correct in saying the vaccine was dangerous.
A majority of the United States Senate approved Robert Kennedy, Jr., to be the Secretary of Health and Human Services. He was nominated by the current President of the United States. A plurality of Americans voters elected that President.