Dr. Carleigh Fedorka, a specialist in reproductive immunology, discusses placentitis in horses. Placentitis is inflammation of the placenta, most commonly caused by bacteria entering through the cervix. Dr. Fedorka emphasizes the importance of early detection and monitoring of mares for signs such as premature mammary gland development and vulvar discharge. She also discusses the use of antibiotics, progestins, and anti-inflammatory medications in the treatment of placentitis. Dr. Fedorka highlights the need for research funding and support to further our understanding of the disease and develop biomarkers for diagnosis and treatment.