*Mainly an avian parasite but will also attack humans
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*E.g. ''A. persicus'', the poultry tick, contributes to production losses in the poultry industry and also feeds on migratory birds in temperate climates
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''Ornithodoros spp.''
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*Warmer climates worldwide
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*Found in primitive housing and sandy soil
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*Vectors for relapsing fever in humans caused by ''Borrelia spp.''