网站大量收购闲置独家精品文档,联系QQ:2885784924

第一章 预防2009级流病绪论(2012年).ppt

  1. 1、本文档共102页,可阅读全部内容。
  2. 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
  3. 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载
  4. 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
查看更多
第一章 预防2009级流病绪论(2012年).ppt

* * * * * * * * * .au/ideas/downloads/tb_community.pdf * * * * * * * 下图就是1954年使用的疫苗小瓶(Vials of polio vaccine, 1954 ) SALK, Jonas Edward (1914–95), American physician and epidemiologist, who developed the first vaccine against POLIOMYELITIS. Born in New York City, Salk received an M.D. from New York University in 1939 and was appointed assistant professor of epidemiology at the University of Michigan. In 1947 he became head of the virus research laboratory at the University of Pittsburgh and was later research professor of bacteriology (1949–54), professor of preventive medicine and chairman of the department (1954–56), and professor of experimental medicine (1957–63). Salk’s work in the 1940s on an anti-influenza vaccine led him and his colleagues to develop an inactivated vaccine against polio in 1952. After successful wide-scale testing in 1954, the vaccine was distributed nationally and greatly reduced the disease. In the mid-1950s the American virologist Albert Sabin developed an oral, attenuated (live), vaccine, which with Salk’s discovery brought polio under control. In 1963 Salk became fellow and director of the Institute for Biological Studies in San Diego, Calif., later called the Salk Institute. Salk also conducted research into the treatment of acquired immune deficiency syndrome (AIDS). What followed was massive testing of the vaccine in clinical trials in the United States and parts of Canada, begun in 1954. The scope of the trials was unprecedented in medical history. The results were dramatic. Cases of polio fell spectacularly in the vaccinated test groups. In 1955, the government quickly granted permission for the vaccine to be distributed to the children of our country. But, there was a problem with the original Salk vaccine. The vaccine actually induced 260 cases of poliomyelitis, including 10 deaths. The problem was traced to incomplete inactivation of some virus particles, which was soon corrected. Since then the vaccine has been highly effect

文档评论(0)

cai + 关注
实名认证
内容提供者

该用户很懒,什么也没介绍

1亿VIP精品文档

相关文档