**Mainly an avian parasite but will also attack humans
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**E.g. ''A. persicus'' the poultry tick which 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 caused by ''Borrelia'' sp.