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（接上期）6 疯牛病研究的新进展6.1 传播途径新发现。苏格兰科学家最近研究发现,患疯牛病的牛粪中带有疯牛病的"病原因子"（即"致病朊粒"）。这种带病原的牛粪一旦污染草地,会使后来在该草地放牧的牛患上疯牛病。专家们认为,这一研究表明,牛粪是传播疯牛病的又一新途径。6.2 英国医学专家举行秘密会议,研讨英国究竟有多少人感染了疯牛病（人的新型克雅氏病）,结果是令人十分可怕的──初步认为有上万个英国人可能感染了疯牛病病原。6.3 英国2000年10月26日发表的《牛海绵状脑病调查报告》再次确认了人的vCJD（新型克雅氏病）是因感… 相似文献
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传染性海绵状脑病(TSE)是人和动物共患的一类慢性、进行性、致死性、传染性和神经系统退行性脑病，在人类主要包括库鲁病(kuru)、克雅氏病(Creutzfeldt—Jakob Disease，CJD)、格施谢三氏症(Gerstmann Straussier Scheinker Disease，GSSD)、致死性家族失眠症(Fatal Familiar Insomnia．FFL)和变异性克雅氏病(Viriant Creutzfeldt—Jakob Disease，vCJD)；动物上主要有羊痒病(Scrapie)，牛海绵状脑病(Bovine Spongiform Encephalopathy． 相似文献
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疯牛病(Mad Cow Disease)为牛传染性海绵状脑病(Bovine Spongiform Encephalopathy;BSE)的俗称,是八十年代中期在英国发现的一种慢性、进行性、非炎性、致死性中枢神经系统疾病。可能是牛吃了感染有痒病的反刍动物制成的骨肉粉浓缩饲料引起。因怀疑与人的海绵状脑病(克雅二氏病[CJD])有关,在西欧乃至其他许多国家引起一遍恐慌。 BSE给英国经济产生了重大深远的影响。十年来,累计火化和掩埋了158 800头 相似文献
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刘伟 《河南畜牧兽医(综合版)》2000,(5)
美国、瑞士等国科学家组成的一个国际科学家小组,对染有绵羊痒病的实验鼠进行了研究,发现一种肽类物质可延缓病鼠海绵状脑病的发病过程。该发现有望为治疗各种海绵状脑病开辟一条新途径。绵羊痒病、疯牛病及人的新型克雅氏病等海绵状脑病,都是由锯蛋白（ｐｒｉｏｎ蛋白）发生变异引起的。该小组发现的肽类物质能改变致病锯蛋白的结构,并使其重新变得与无害锯蛋白类似,这种结构上的改变,可延缓病鼠海绵状脑病的发作海绵状脑病治疗新径@刘伟 相似文献
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本文对人与动物可传递海绵状脑病，特别是牛海绵状脑病和人类变异型克雅氏病的历史与现状，病原，临床症状、病理变化。诊断及防治进行了介绍。 相似文献
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牛海绵状脑病(Bovine spongiform encephalopathy，BSE)又称疯牛病，是成年牛的一种由非常规致病因子引起的进行性、神经性、致死性疾病。该病的主要特征是牛脑发生海绵状病变，并伴随大脑功能退化。临床表现为神经质、运动失调、痴呆和死。能够表现这种症状的疾病还有羊的痒病(Scrapie)、人的库鲁氏病和克雅氏病(CJD)等。自 相似文献
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Beran GW 《Preventive veterinary medicine》2008,86(3-4):198-207
When early people made their appearance, zoonotic infectious diseases were already waiting, but epidemic diseases did not appear in human history until people began to live in large numbers under conditions of close contact, mainly during the last 10,000 years. Disease has decimated urban populations, conquered armies, and disrupted society. The focus here is on (1) the plague of Athens and the Black Death; (2) smallpox, influenza, and rabies; (3) avian influenza prion diseases, and foot & mouth disease; and (4) emerging and re-emerging diseases. All have veterinary public health associations. In Athens, Greece, in 430 BC, when the Spartans ravaged the countryside, hordes crowded into Athens so that orderly movements, space in which to live, and adequate supplies of food became impossible. Crowding of any population fosters disease transmission; chaos and disorder enhance it all the more. Out of northern Egypt came a terrible plague from across the Mediterranean Sea. The identity of the plague of Athens remains unsure, but the well-considered conclusion is Rift Valley Fever, a mosquito borne, viral zoonosis. The Black Death, also called the Plague, raged in Asia for centuries. In 1347, the Black Death was brought by a ship out of Asia to Sicily. The scenes of devastation were repeated throughout Europe, with 90% or more of the people dying in city after city. Influenza, too, has been a cause of periodic human epidemics, but the great pandemic of influenza occurred in the last months of World War I. In the years of highest occurrence, more than half the world's population became clinically infected. If veterinary public health had been born earlier, it could have led to elucidating the epidemiology of influenza and the plagues of Athens, Europe, and Asia. In turn, smallpox had also caused continual tragedy. In 1796, Edward Jenner began to harvest pustules of cowpox from children or infected cows and inject them into susceptible children. In 1980, the World Health Organization declared that smallpox had been eliminated from the world. Rabies, though, still strikes terror. A number of animal diseases, broadly termed emerging and re-emerging diseases, need surveillance because they have the potential to impact human health. From late in 2003 to 2007, the highly pathogenic H5N1 influenza virus in poultry infected at least 121 people and caused 62 deaths in four countries. The prion diseases, too, all have very high numbers in concentrated contacts. To control these diseases, veterinary public health is essential, with diagnosis, epidemiological surveillance, clinical manifestations, and prevention as primary measures. 相似文献
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在动物的异常行为中以刻板行为最为常见,而咽气癖又是马最常见的口部刻板行为之一。作者就咽气癖在生理方面和心智方面对马体产生的影响、行为基础、诱因的研究进展及常见的防治措施进行综述。 相似文献
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Dekker A Dercksen D Snoep J van Wuyjckhuise L 《Tijdschrift voor diergeneeskunde》2007,132(18):695-701
On 26th of july 2007 a new case of bluetongue was notified in the Netherlands and on 2nd of august 2007 foot-and-mouth disease was diagnosed in Surrey, England, which raised the threat of having both infections simultaniously in one area. Bluetongue and foot-and-mouth disease have a different pathogenesis, but symptoms may resemble each other at a later stage of infection. The pathogenesis and possible clinical symptoms of both infections are discussed and illustrated with pictures. 相似文献
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近几年,世界饲用添加剂市场增长较快,预计今后将进一步增长,据世界粮农组织(FAO)首领会议的倡议,到2015年,将使世界营养不良的人口削减一半,其间,肉制品将会以每年2％的速度增长,特别是加快猪肉和禽肉增长。这将促进世界添加剂,尤其是蛋氨酸和赖氨酸需求量的增加。 相似文献
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