人じん痘とう種しゅ痘とう法ほう

noun

variolation

Historical medical term for inoculation against smallpox using material from human smallpox lesions, practiced before modern vaccination.

• 江え戸ど時じ代だい、人じん痘とう種しゅ痘とう法ほうが天てん然ねん痘とうの予よ防ぼうに用もちいられた。

  During the Edo period, variolation was used to prevent smallpox.