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2 Replies to “The first vaccine was developed to prevent smallpox.”

  1. The guy noticed that milk maids never got smallpox. They got cow pox, though. He inocculated his kids (!) with cow pox, and then inocculated them with SMALL POX!.. Lucky for him and his marriage, he was correct that having cow pox gave immunity to small pox. Wow – sure couldn’t do something like that now days. The authorities would take your kids, charge you with attempted murder and throw you in jail.

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  2. Why would you want comment?

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