NERDS GONE WILD

The first vaccine side effect was “feeling smug.” Which still happens, honestly.

✗ FAKE
There is no record of a first vaccine side effect being feeling smug. Edward Jenner's smallpox vaccine in 1796 is often called the first, and common side effects are things like soreness.

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The first vaccine side effect was “feeling smug.” Which still happens, honestly. | SmartAss Facts