the.com/milkmaid

The original job with job security — until a cow accidentally invented vaccines.

means A woman or girl employed to milk cows and work with dairy.

from A plain compound of 'milk' plus 'maid' (a young woman or female servant), formed the same straightforward way as milkman — the job simply named the worker. The word's brush with history came in the late 1700s, when the folk observation that milkmaids who'd caught cowpox seemed immune to smallpox led a country doctor to test the idea, kickstarting vaccination (from 'vacca,' Latin for cow).

smallpox clue
milkmaids who caught cowpox rarely caught smallpox
jenner's insight
edward jenner built the first vaccine from that observation
clear skin myth
famous for unscarred faces in a pockmarked era
word origin
vaccine comes from vacca, latin for cow
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