The Chinese practice of variolation must have made little sense to 18th-century Englanders. It involved giving children small scratches and then rubbing the broken skin with powder ground from smallpox scabs.
18世紀的英格蘭人一定不能理解中國的人痘接種法:把受種兒童的皮膚劃破一小塊,然後把天花患者痘痂所制粉末擦在皮膚破損處。
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