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1988年9月在丹麦哥本哈根召开了第五届国际百日咳讨论会,来自51个国家的180多位代表参加了会议.会议回顾了百日咳和百日咳菌苗现状.在世界一些地区.每52秒钟就有1名5岁以下儿童死于百日咳!相反,在发达国家有效免疫程序将发病数降为每年仅数千例.与会者回顾了英国和日本减少百日咳菌苗使用后百日咳病例的增加.由于没有常规推荐使用菌苗.西德有些地方菌苗接种率低至7%,因此有相当多的病例发生.
The Fifth International Whooping Coot Symposium was held in Copenhagen, Denmark in September 1988 and over 180 delegates from 51 countries attended the meeting, reviewing the current status of whooping cough and whooping cough vaccine in some parts of the world. Every 52 seconds In contrast, an effective immunization program in developed countries reduced the number of cases to only a few thousand cases per year, with the death of a child under the age of 5. Participants reviewed the increase in pertussis cases in Britain and Japan after their use of B. pertussis has been reduced. Vaccines are routinely recommended, and in some parts of the West Germany vaccination rates are as low as 7%, resulting in a considerable number of cases.