Van Nes A, Stegeman J A, De Jong M C, Loeffen W L, Kimman T G, Verheijden J H
Department of Herd Health and Reproduction, University of Utrecht, The Netherlands.
Vaccine. 1996 Aug;14(11):1042-4. doi: 10.1016/0264-410x(96)00022-9.
In this study we quantified the transmission of pseudorabies virus (PRV) in well-immunized sow herds in The Netherlands. In three herds, sows were tested for antibodies to gE of PRV every time after they had been transported to another barn (survey A). In 99 other herds, sows were tested simultaneously once or twice yearly (survey B). We observed six introductions in survey A and 53 in survey B. None of these introductions resulted in extensive spread of the virus. The reproduction ratio R, which is defined as the mean number of secondary infections caused by one infectious sow, was significantly less than one. We conclude that PRV can be eliminated from sow herds by vaccination.
在本研究中，我们对荷兰免疫良好的母猪群中伪狂犬病病毒（PRV）的传播进行了量化。在三个猪群中，母猪每次被转运到另一个猪舍后都进行PRV gE抗体检测（调查A）。在另外99个猪群中，母猪每年同时检测一次或两次（调查B）。我们在调查A中观察到6次病毒引入，在调查B中观察到53次。这些引入均未导致病毒的广泛传播。繁殖率R定义为一头感染母猪引起的继发感染平均数，显著小于1。我们得出结论，通过疫苗接种可从母猪群中消除PRV。
