Preferential sexual transmission of pseudorabies virus in feral swine populations may not account for observed seroprevalence in the USA.
Preferential sexual transmission of pseudorabies virus in feral swine populations may not account for observed seroprevalence in the USA.
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野猪种群中伪标记病毒的优先传播可能不会说明美国的血清阳性。
DOI：
10.1016/j.prevetmed.2011.09.010
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发表时间：
2012-02-01
影响因子：
2.6
通讯作者：
Smith G
中科院分区：
文献类型：
--
作者：
Smith G
本文比较了美国野猪中伪狂犬病病毒传播的两种竞争模型的行为。在第一个模型中，水平（非性）密度依赖传播是唯一的传播方式。在第二种模型中，唯一的传播方式是成熟男性和女性之间的性传播。对模型行为进行比较是为了检验以下假设：野猪中 PRV 的优先性传播可以解释现场观察到的血清阳性率。仅当野猪交配系统是随机交配系统或一夫多妻系统（其中新配偶获得率相对较高）时，在美国成熟野猪中观察到的 PRV 血清阳性率范围才与优先性传播一致。在美国成熟野猪中观察到的 PRV 血清阳性率范围与有配偶保护的情况下的优先性传播不一致。这一点很重要，因为《国家伪狂犬病监测计划》认为，无论是从计划范围还是从分配的资源来看，监测野猪引入 PRV 的风险都是一个“次要目标”。该声明的基本原理源自实验研究，该研究表明美国野猪固有的 PRV 优先通过性传播。
This paper compares the behavior of two competing models for the transmission of pseudorabies virus in feral swine in the USA. In first model, horizontal (non-sexual) density dependent transmission is the only transmission modality. In the second model, the only transmission modality is sexual transmission between mature males and females. The comparison of model behavior was carried out to test the hypothesis that preferential sexual transmission of PRV in feral swine can account for the seroprevalence observed in the field. The observed range of seroprevalence of PRV in mature feral swine in the USA is consistent with a preferential sexual transmission only if the feral swine mating system is a random mating system or a polygynous system in which there is a relatively large rate of acquisition of new mates. The observed range of seroprevalence of PRV in mature feral swine in the USA is not consistent with a preferential sexual transmission if there is mate guarding. This is important because the National Pseudorabies Surveillance Plan deems monitoring the risk of PRV introduction from feral swine to be a “minor objective” both in terms of the scope of the plan and with respect to the resources allocated. The rationale for this statement was derived from experimental studies, which suggested that the PRV indigenous to feral swine in the USA is preferentially sexually transmitted.
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