In the early 1700s, a minister in Boston named Cotton Mather learned about something called smallpox variolation. Smallpox ...
It was quite a victory, then, when English physician Edward Jenner developed an inoculation against smallpox in 1796. Armed with the knowledge that milkmaids who had been exposed to cowpox ...
In the early 1700s, a minister in Boston named Cotton Mather learned about something called smallpox variolation. Smallpox variolation is another way of describing smallpox inoculation ...