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Comparative Pathology and Pathogenesis of African Swine Fever Infection in Swine.
Frontiers in Veterinary Science ( IF 2.6 ) Pub Date : 2020-05-19 , DOI: 10.3389/fvets.2020.00282
Francisco J Salguero 1
Affiliation  

African Swine Fever (ASF) is a viral disease that affects animals of the Suidae family, and soft ticks from the genus Ornithodoros can also be infected by the ASF virus (ASFV). The disease was first described in Africa at the beginning of the twentieth century as an acute disease characterized by high mortality and fatal hemorrhages. ASF has caused outbreaks in numerous countries and it continues to be devastating nowadays for the porcine sector in those countries affected, and a massive threat for those free of the disease. ASF can follow clinical courses from peracute to chronic in domestic pigs (Sus scrofa) depending on a variety of factors, including the immune status of the animals and the virulence of the ASFV strain. The key features of the pathogenesis of the disease in domestic swine are a) a severe lymphoid depletion including lymphopenia and a state of immunodeficiency, and b) hemorrhages. However, African wild swine like bushpigs (Potamochoerus larvatus), red river hogs (Potamochoerus porcus), and warthogs (Phacochoerus africanus) can be infected by ASFV showing no clinical signs of disease and acting as natural reservoir hosts. In this article we review the key features of the gross and microscopic pathology together with a description of the pathogenesis of ASFV infection in domestic pigs following the different clinical courses. The pathogenesis of ASF in wild and domestic swine is also described, what can provide important information for the design of control strategies, such as vaccines.

中文翻译:

猪中非洲猪瘟感染的比较病理学和发病机理。

非洲猪瘟(ASF)是一种病毒性疾病,会影响Suidae家族的动物,并且Ornithodoros属的soft虫也会感染ASF病毒(ASFV)。该疾病在二十世纪初首次在非洲被描述为一种以高死亡率和致命性出血为特征的急性疾病。ASF已在许多国家引起疾病暴发,如今对受感染国家的猪业而言,它仍然是毁灭性的灾难,而对于那些没有该病的国家而言,则是巨大的威胁。ASF可以根据各种因素(包括动物的免疫状态和ASFV毒株的毒力),按照家猪从全速到慢性进行临床过程。家猪中该病发病机理的关键特征是:a)严重的淋巴消耗,包括淋巴细胞减少症和免疫缺陷状态; b)出血。但是,非洲野生猪,如丛林猪(Potamochoerus larvatus),红河猪(Potamochoerus porcus)和疣猪(Phacochoerus africanus)都可以被ASFV感染,表现出无临床疾病迹象,并可以作为天然水库宿主。在本文中,我们将回顾总体和微观病理学的关键特征,并描述遵循不同临床过程的家猪中ASFV感染的发病机理。还描述了野生和家养猪中ASF的发病机理,这可以为设计控制策略(如疫苗)提供重要信息。非洲野生猪,如丛林猪(Potamochoerus larvatus),红河猪(Potamochoerus porcus)和疣猪(Phacochoerus africanus)均可被ASFV感染,无临床疾病迹象,可作为天然水库宿主。在本文中,我们将回顾总体和微观病理学的关键特征,并描述遵循不同临床过程的家猪中ASFV感染的发病机理。还描述了野生和家养猪中ASF的发病机理,这可以为设计控制策略(如疫苗)提供重要信息。非洲野生猪,如丛林猪(Potamochoerus larvatus),红河猪(Potamochoerus porcus)和疣猪(Phacochoerus africanus)均可被ASFV感染,无临床疾病迹象,可作为天然水库宿主。在本文中,我们将回顾总体和微观病理学的关键特征,并描述遵循不同临床过程的家猪中ASFV感染的发病机理。还描述了野生和家养猪中ASF的发病机理,这可以为设计控制策略(如疫苗)提供重要信息。在本文中,我们将回顾总体和微观病理学的关键特征,并描述遵循不同临床过程的家猪中ASFV感染的发病机理。还描述了野生和家养猪中ASF的发病机理,这可以为设计控制策略(如疫苗)提供重要信息。在本文中,我们将回顾总体和微观病理学的关键特征,并描述遵循不同临床过程的家猪中ASFV感染的发病机理。还描述了野生和家养猪中ASF的发病机理,这可以为设计控制策略(如疫苗)提供重要信息。
更新日期:2020-05-19
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