| Ornithodoros turicata | A species that readily attacks man and other animals in the southern portion of the U.S. And Mexico; it is a vector of Borrelia turicatae, an agent of relapsing fever; the bite is painful and irritating. (05 Mar 2000) |
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| Ornithodoros venezuelensis | A species that is the vector of Borrelia venezuelensis, agent of relapsing fever in Colombia, Venezuela, and mountainous parts of South America. (05 Mar 2000) |