Abstract
Infections caused byVibrio fetusoriginally interested the veterinarian, and in 1911 McFaydean and Stockman associated this organism with infectious abortion in cattle.1Seven years later, Theobald Smith studied the pathogenesis of vibriosis in cattle and related fetal loss to interference of placental circulation by necrosis of fetal membranes.2,3Cattle vibriosis is a venereal disease. The bull is asymptomatic andV fetusresides in the preputial mucosa. Conception is infrequent once the organism inhabits the cow's vagina. Abortion results when infection occurs during the first six months of pregnancy; bacteria are found in the uterus, placenta, and fetus. This disease ranks with brucellosis as a major cause of bovine fetal wastage.4Infection byV fetuscauses abortion in sheep and goats; the mode of transmission is unknown although contamination of food and water is suspected.5 Human abortion caused byV fetuswas first noted in a pregnant housewife by Vinzent
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