Russell's viper envenomation in a 9-month pregnant mare saved with high-dose antivenom: a first-in-world case report.

While snakebite in pregnant women has been sporadically reported and is known to be associated with significant obstetrical complications, envenomation in animals, particularly in pregnant horses, is exceedingly rare.

Russell's viper (Daboia russelii) envenomation is a major cause of morbidity and mortality in South Asia.

We describe the first documented case of severe Russell's viper envenomation in a 5.5-year-old Marwari mare at 9 months of gestation following confirmed double bites to the muzzle.