Effects of endotoxin on the pregnant baboon and fetus.

Effects of E. coli endotoxin upon uterine activity and maternal and fetal condition were studied in four pregnant baboons and their fetuses. Uterine activity increased significantly following administration of endotoxin to the mother. Endotoxin also produced maternal circulatory collapse, severe acidosis, and profound fetal asphyxia resulting in death. Death also occurred in three of the four mothers within 24 hours without amelioration of their conditions.