Affinity purified polyclonal antibody to Borrelia species made in goat and labeled with fluorescein isothiocyanate (FITC). Isolated from a serum pool from goats immunized with heat-killed whole cells of Borrelia burgdorferi. The antibody is highly specific for Borrelia burgdorferi, Borrelia hermsii, Borrelia anserina, and Borrelia coriaceae. Product is in lyophilized form. Each lot is tested to assure specificity and lot-to-lot consistency using an in-house ELISA assay.