The first vaccine for smallpox was developed at the end of the 18th century, and by the end of the 19th century, the disease had become comparatively rare in most industrialized countries. In the 20th century, medical advances made the vaccine easier to produce and transport around the world, leading to a global campaign to eradicate smallpox completely. It succeeded: the last smallpox infection “in the wild” occurred in Somalia in 1977, and the last outbreak in history—and the final smallpox death—happened after a lab accident in 1978.
After coming so far from having massive amounts of people dying of smallpox, we are back at a 19th century mode of thinking.
