Fun facts!
Good old Ben was lamenting his failure to use
variolation (not vaccination) on his son. Vaccination did not exist in 1736. Instead, what people did was take (WARNING, this gets gross - stop reading now if you must) the ground up scabs of small pox survivors and then either blow them up the nose or wipe them into open cuts of healthy people. The thinking was that if a person was infected with small pox from someone that survived, it was likely a less deadly version than what they might catch out in the open. This practice was eventually banned because it had a 1-2% mortality rate in healthy people. (We would NEVER accept those kind of statistics from modern vaccines.)
True vaccination, which uses a killed microbe, part of a microbe, or a different microbe entirely in the inoculation, didn't exist until 1796 when Edward Jenner experimented on his gardener's kid with cowpox scabs from a milkmaid.
This concludes my TED talk. Carry on....
PS
@TragicMike I don't mean to steal any thunder from your argument. I just really like sharing this bit of history because I'm a nerd.