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vaccine

Edward Jenner protected people from smallpox with cowpox, which he called variolae vaccīnae, 'cow pustules', from Latin vacca 'cow'. Pasteur widened vaccine to every such preparation; Spain's Balmis expedition carried vacuna to Mexico and the Philippines, and German Vakzin gave Japanese wakuchin.

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200 BCELatin

Hops are evenly spaced; labels show the year each form is first attested.

vaccine

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