Affinity purified polyclonal antibody (BacTrace) to Borrelia burgdorferi made in goat. Isolated from a serum pool of goats immunized with heat killed whole cells of Borrelia burgdorferi. The antibody is highly specific for Borrelia burgdorferi. Cross reactivity to Borrelia hermsii, Borrelia coriaceae, and Borrelia anserina has been minimized through extensive affinity adsorption. Product is in lyophilized form. Each lot is tested to assure specificity and lot-to-lot consistency using an in-house ELISA assay.