Laurie Beard, DVM, MS, DACVIM

Purpura hemorrhagica is an immune mediated vasculitis associated with sensitization and cross-reactivity to proteins in the cell wall of Strep equi.

Other names for this syndrome include Insulin resistance, Obesity-Associated Laminitis, Peripheral Cushing's Disease; Omental Cushing's Disease

Differential diagnoses for spinal ataxia in horses includes: cervical vertebral stenotic myelopathy (CVSM), equine protozoal myelitis (EPM), trauma, congenital abnormalities, equine degenerative myelopathy (EDM), and equine herpes virus-1.

Diarrhea in young foals (< 1 month): 1) rotavirus; 2) Clostridial (difficile and perfringens); 3) Salmonella; 4) parasites (Strongyloides westeri); 5) cornavirus and 5) Cryptosporidium. Of these rotavirus, Clostridial spp. and Salmonella are the most common.

Vestibular disease may result from a number of infectious, traumatic and non-infectious conditions.

Lower respiratory disease is a common problem in foals under 8 months of age.