Impact of bovine herpesvirus-1 infection on fertility in dairy cattle

KC Henderson, GC Caldow*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Bovine herpesvirus-1 (BoHV-1) is endemic in the UK dairy herd and subclinical infection can have an important negative impact on fertility. As well as being the cause of infectious pustular vulvovaginitis and infectious balanoposthitis, BoHV-1 can reduce conception rate following introduction of the virus in contaminated semen at the time of artificial insemination. Its ability to cause abortions, particularly in the last trimester, is well-documented and the incidence of abortions can be high following the introduction of infection to naïve herds. The impact of BoHV-1 on herd fertility will depend on the degree of herd immunity, route of infection and strain of BoHV-1. Vaccination has been shown to reduce spread of BoHV-1 within and between herds, and to significantly reduce the risk of abortion. In light of the cost of a single abortion, and the impact of BoHV-1 on milk yield, routine vaccination against BoHV-1 offers a costeffective control strategy suitable for most UK dairy herds
Original languageEnglish
Number of pages6
Early online date15 Nov 2023
Publication statusFirst published - 15 Nov 2023


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