This study aimed to follow the time-course pathogenesis of EHV-9 abortion in early and late trimesters. Twenty-seven pregnant hamster dams were divided into three groups: (G1) control. (G2) EHV-9-inoculated on the 5th day (early trimester). and (G3) EHV-9-inoculated on the 10th day of gestation (late trimester). https://www.opheliasmuse.com/