Viable Borrelia Burgdorferi in the Urine of Two Clinically Normal Horses

Diagnosticiansshould be aware of the possibilities of these concurrent viralinfections in raccoons with neurologic disorders.Acknowledgements We thank G. Moser, B. Lehman, andS. Hindman for technical assistance. This work was sup-ported by grants from the Pennsylvania Department of Ag-riculture and the Laboratory of Large Animal Pathology,University of Pennsylvania.References