Background: Bovine alphaherpesvirus 1 (BoHV-1) is a serious disease with severe negative economic effects on the global cattle sector, especially in Iran.
Objective: This cross-sectional study was carried out to examine the seroprevalence and associated risk factors of BoHV-1 infection with progesterone levels and embryo death in 30-day pregnant dairy cattle at Zagros Industrial Dairy Farm in Shahrekord, Iran.
Methods: Between December 2017 to February 2018, blood samples were obtained from 60 dairy cow herds.