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During the 18th century, variolation was practiced to induce a mild form of smallpox and thereby confer immunity, even though it carried significant risks.
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During the 18th century, variolation was practiced to induce a mild form of smallpox and thereby confer immunity, even though it carried significant risks.
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Related words
variolation
Noun
countable
historical
uncountable
Japanese Meaning
（歴史的）天然痘に対する免疫を得る目的で、軽度の感染を意図して天然痘ウイルスを用いて行う接種法
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