TABLE 1. Borrelia species associated with diseases of humans and domestic animals % DNA Borrelia Sp.a Disease homology with Arthropod vector' Geographic distribution of disease B. hermsiib B. hermsii New World tick-borne 100 0. hermsi Western United States and Canada relapsing fever B. turicatae New World tick-borne 86 0. turicata Southwestern United States and relapsing fever northern Mexico B. parkeri New World tick-borne 77 0. parkeri Western United States and Baja relapsing fever California B. mazzottii New World tick-borne ND 0. talaje Mexico and Central America relapsing fever B. venezuelensis New World tick-borne ND 0. rudis Central America and northern South relapsing fever America B. duttonii Old World tick-borne 17 0. moubata Sub-Saharan Africa relapsing fever B. crocidurae Old World tick-borne 32-35 0. erraticus North Africa, East Africa, Near East, relapsing fever