can cause disease in humans and in a wide range of animal species, especially in farm ruminants. The aim of the study was to determine the prevalence and genetic diversity of related to 1185 cattle abortion cases in Latvia during 2013-2018. The prevalence of among cattle abortions was 16.1% (191/1185). The seasonality of abortions was observed with significantly higher occurrence ( < 0.01) in spring (March-May). In 61.0% of the cases, the affected cattle were under four years of age. abortions were observed during the third (64.6%) and second (33.3%) trimesters of gestation. Overall, 27 different sequence types (ST) were detected, and four of them, ST29 (clonal complex, CC29), ST37 (CC37), ST451 (CC11) and ST7 (CC7), covered more than half of the isolates. Key virulence factors like the -dependent virulence cluster and were observed in all the analyzed isolates, but were associated with individual sequence types. Our results confirmed that is the most important causative agent of cattle abortions in Latvia and more than 20 different STs were observed in abortions in cattle.