七、参考文献

［1］World Health Organization.Immunization，vaccines and biologicals：data，statistics and graphics［EB/OL］.（2018-01-01）［2020-09-22］.https：//www.who.int/teams/immunization-vaccines-and-biologicals.

［2］中华人民共和国卫生部.白喉诊断标准：WS 275—2007［S/OL］.［2020-07-29］.http：//www.nhc.gov.cn/wjw/s9491/200704/38798.shtml.(https://www.daowen.com)

［3］YU W，LEE L A，LIU Y，et al.Vaccine-preventable disease control in the People's Republic of China：1949—2016［J］.Vaccine，2018，36 （52）：8131-8137.