Objective: The aim of this study was to investigate the seroprevalence of coinfections with bovine herpes virus-1 (BHV-1). bovine viral diarrhea (BVD). bluetoungue virus (BTV) and bovine herpes virus-4 (BHV-4) in cattle with reproductive problems in Sudan. and to determine the relation of single or mixed seropositivity with abortion. https://www.jmannino.com/best-grab-Kelway-SST-Salinity-Tester-top-mega/