Smallpox inoculation or variolation is a great invention of medicine in ancient China.
人痘接种预防天花是中国古代医学家的伟大发明。
Abstract: Smallpox inoculation or variolation is a great invention of medicine in ancient China.
文摘：人痘接种预防天花是中国古代医学家的伟大发明。
Unlike Jenner's later vaccination, which used cowpox, variolation used a small measure of smallpox itself.
接种人痘，是直接使用小量的天花，和金纳后来用牛痘接种不同。
Unlike Jenner's later vaccination, which used cowpox, variolation used a small measure of smallpox itself.
接种人痘，是直接使用小量的天花，和金纳后来用牛痘接种不同。
应用推荐