Association between the Presence of Intrauterine <i>Escherichia coli<i/> Virulence Genes and Subsequent Reproductive Tract Disease in Postpartum Dairy Cows

An association between postpartum intrauterine Escherichia coli and subsequent reproductive tract diseases such as purulent vaginal discharge (PVD) and endometritis (ENDO) has been found inconsistently in previous research.