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[引言] 传染性法氏囊病(IBD)是由双股RNA病毒引起的未成年鸡的一种高度接触性传染病,感染鸡导致免疫抑制。该病在1957年就已出现,1962年Cosgrove正式报道了该病在美国特拉华州(Delaware)甘布罗镇(Gumboro)的肉鸡群中发生,因此又称“甘布罗病”。起初,因其引起明显的肾脏损伤,称该病为“鸡肾炎——肾病综合症”,但病理学家们也发现患鸡法氏囊肿胀。至70年代中期,IBD已遍及包括澳大利亚的大多数工业化养鸡国家。新西兰在80年代中期无传染性法氏 相似文献
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猪繁殖与呼吸综合征(PRRS)是八十年代末期出现的猪的一种新病毒性高度传染性疫病,曾有“神秘猪病”、“蓝耳病”、“猪流行性流产和呼吸综合症”、“猪不育和呼吸综合症”等不同名称。其病原PRRSV是一种单股正链RNA病毒,属动脉炎病毒群。目前世界上许多国家和地区普遍存在该病,是危害世界养猪业的重要猪病之一,因此,国际兽疫局(OIE)将其列为B类传染病。我国《一、二、三类动物疫病病种名录》中将PRRS列为二类动物疫病进 相似文献
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猪·圆·环·病·毒 总被引:13,自引:0,他引:13
1974年 ,Tischer[32 ] 发现 ,在多株连续传代的PK- 1 5细胞中存在一种形态类似小 RNA病毒的圆型小颗粒病毒 ,该病毒可以持续感染 PK- 1 5细胞 ,不会引起细胞病变。 Tischer[33 ] 证实 ,PK- 1 5细胞中存在的这种病毒来源于当初制备 PK- 1 5细胞的猪肾组织 ,病毒的基因组由一个单股呈圆环状的 DNA链组成 ,是一种新发现的病毒 ,称为猪圆环病毒(Porcine Circovirus,PCV)。血清学调查表明 ,PCV在柏林附近猪群中的阳性感染率高达 77%~95% [3 4 ] ,之后加拿大 [11]、新西兰 [18]、英国 [12 ]、北爱尔兰 [1]、美国 [16]均报道其猪群中的 … 相似文献
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猪繁殖与呼吸综合征(PRRS)是八十年代末期出现的猪的一种新病毒性高度传染性疫病,曾有“神秘猪病”、“蓝耳病”、“猪流行性流产和呼吸综合症”、“猪不育和呼吸综合症”等不同名称。其病原PRRSV是一种单股正链RNA病毒,属动脉炎病毒群。目前世界上许多国家和地区普遍存在该病,是危害世界养猪业的重要猪病之一。因此,国际兽疫局(OIE)将其列为B类传染病。我国《一、二、三类动物疫病病种名录》中将PRRS列为二类动物疫病进行法定管理,在北京、黑龙江、广东、上海等一些地区均有发病报道。2002年10月,我区辛冲镇爆发了一起猪繁殖与呼吸… 相似文献
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我国猪流行性腹泻的流行病学分析 总被引:1,自引:0,他引:1
《养猪》2019,(2)
<正>猪流行性腹泻(Porcine epidemic diarrhea, PED)是由猪流行性腹泻病毒(Porcine epidemic diarrhea virus, PEDV)引起的猪的一种急性、高度传染性肠道疾病,临床上以呕吐、水样腹泻、脱水死亡和哺乳仔猪高致死率为主要特征[1]。1978年,比利时首次分离鉴定出该病毒,命名为CV777[2]。随后,匈牙利、德国、泰国、韩国、日本、中国、美国等国家都陆续报道了本病。PEDV造成的危害非常严重,2010—2011年,我国 相似文献
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猪繁殖——呼吸综合症 总被引:1,自引:0,他引:1
猪繁殖—呼吸综合症 ( PRRS)是近年来流行较广的重要猪病之一。 1992年我国农业部制订公布的《进境动物一、二类传染病、寄生虫病名录》中 ,该病列为二类传染病。正式定名为“猪生殖—呼吸系统综合症 (蓝耳病 ) ,PRRS”。1 病原1.1 PRRS病毒的起源 目前有三种假说 :1猪非致病性病毒的变异 ;2野生动物病毒侵害猪群 ;3地方猪群带有非致病性病毒侵害高产新品种猪群。1.2 病毒的形态和物理特性 PRRS病毒是一种有囊膜的单链小 RNA病毒 ,属动脉炎病毒群 ,披膜病毒科。病毒粒子为球状颗粒 ,直径为 45~ 5 5 nm,核衣壳直径为 30~35 … 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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