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African Swine Fever: Fast and Furious or Slow and Steady?

机译：非洲猪瘟：速度与激情还是缓慢而稳定？

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Since the introduction of African swine fever (ASF) into Georgia in 2007, the disease has been spreading in an unprecedented way. Many countries that are still free from the disease fear the emergence of ASF in their territory either in domestic pigs or in wild boar. In the past, ASF was often described as being a highly contagious disease with mortality often up to 100%. However, the belief that the disease might enter a naïve population and rapidly affect the entire susceptible population needs to be critically reviewed. The current ASF epidemic in wild boar, but also the course of ASF within outbreaks in domestic pig holdings, suggest a constant, but relatively slow spread. Moreover, the results of several experimental and field studies support the impression that the spread of ASF is not always fast. ASF spread and its speed depend on various factors concerning the host, the virus, and also the environment. Many of these factors and their effects are not fully understood. For this review, we collated published information regarding the spreading speed of ASF and the factors that are deemed to influence the speed of ASF spread and tried to clarify some issues and open questions in this respect.
机译：自2007年将非洲猪瘟（ASF）引入格鲁吉亚以来，该疾病以前所未有的方式传播。许多仍然没有这种疾病的国家担心家养猪或野猪中会出现ASF。过去，ASF通常被描述为一种具有高度传染性的疾病，死亡率通常高达100％。但是，关于这种疾病可能会进入天真的人群并迅速影响整个易感人群的观点需要进行严格审查。当前野猪中的ASF流行病，以及家养猪爆发中的ASF病程，都表明传播持续但相对缓慢。此外，一些实验和现场研究的结果支持了这样一种印象，即ASF的传播并不总是那么快。 ASF的传播及其速度取决于与宿主，病毒以及环境有关的各种因素。这些因素中的许多因素及其影响尚未完全了解。在本次审查中，我们整理了有关ASF传播速度以及被认为影响ASF传播速度的因素的公开信息，并试图澄清这方面的一些问题和未解决的问题。

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