Vegetative endocarditis associated with Arcanobacterium haemolyticum in a Holstein cow

A 4-year-old Holstein cow with progressive atrophy and ataxia was submitted for diagnosis. The postmortem examination revealed multifocal yellowish nodules in the pulmonary parenchyma vegetative masses mitral tricuspid valve of heart. Both kidneys were severely enlarged, multiple yellow on parenchyma. Histopathologically, abscesses, endocarditis, suppurative glomerulonephritis, fibrino-purulent arthritis observed. tiny β-hemolytic bacterial colonies isolated from lesions identified as Arcanobacterium haemolyticum by Vitek 2 system (bioMérieux, USA). This is first documented report an A. infection a Korea.