No major outbreaks of pseudorabies virus in well-immunized sow herds

A. van Nes, J.A. Stegeman, M.C.M. de Jong, W.L.A. Loeffen, T.G. Kimman, J.H.M. Verheijden

    Research output: Contribution to journalArticleAcademicpeer-review

    20 Citations (Scopus)

    Abstract

    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.
    Original languageEnglish
    Pages (from-to)1042-1044
    JournalVaccine
    Volume14
    Issue number11
    DOIs
    Publication statusPublished - 1996

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