The only human disease ever eradicated, smallpox, was eradicated using a vaccine. In the 18th century, scientist Edward Jenner decided to follow up his observation that dairy workers who had contracted a relatively mild cowpox infection were immune to the deadly smallpox virus. In 1796, he

Like John Oliver has already said, when the Polio shot came out, people lined up for it like it was the latest iPhone. However, despite millions of lives different vaccines have saved so far, small groups have been – and still are – skeptical about them. For example, one anti-vaxxer has posted a