Peanuts by Charles Schulz for May 06, 1957

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    yow4zip Premium Member almost 7 years ago

    (cough, cough)

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    Stormwyrm  almost 7 years ago

    The measles vaccine didn’t exist in 1957. That won’t be invented until 1963. A mumps vaccine was developed in 1948 but it was not terribly effective, and a really good vaccine wouldn’t be invented until the 1960s. The MMR vaccine was invented in 1971.

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