Topic:Listeriosis
Listeriosis in horses is a bacterial infection caused by Listeria monocytogenes. This pathogen can lead to neurological, reproductive, and gastrointestinal issues in affected equines. The disease is typically contracted through the ingestion of contaminated feed or water, and it can manifest in various forms, including encephalitis, septicemia, and abortion. Clinical signs may vary but often include fever, depression, and neurological symptoms such as ataxia and head tilt. Diagnosis is generally confirmed through bacterial culture or molecular techniques. This page compiles peer-reviewed research studies and scholarly articles that explore the epidemiology, pathogenesis, clinical presentation, and management of listeriosis in horses.
Listeriosis in an Arabian foal with combined immunodeficiency. A 1-month-old Arabian foal with signs of central nervous system disease was found to have combined (B- and T-lymphocyte) immunodeficiency. The foal died in spite of intensive antibiotic therapy. At necropsy, generalized lymphoid hypoplasia and acute necrotizing and granulomatous inflammation of the brain, heart, and adrenal glands were found. In addition, there were spinal meningitis and focal hepatic necrosis. Listeria monocytogenes was isolated on primary culture from the brain.