co-infection of ornithodoros coriaceus with the relapsing fever spirochete, borrelia coriaceae, and the agent of epizootic bovine abortion.the soft tick, ornithodoros coriaceus (koch) (acari: argasidae), is a common mammalian parasite of livestock in many arid regions of the western u.s.a. the tick is a known vector of the undescribed bacterial pathogen that causes epizootic bovine abortion (eba), which results in late-term abortions in beef cattle and subsequent economic loss, which can be considerable, to producers. a second reported bacterial pathogen, borrelia coriaceae, a member of the relapsing fever complex, has also been id ...201121410735
genetic structure of the tick ornithodoros coriaceus (acari: argasidae) in california, nevada, and oregon.the argasid tick ornithodoros coriaceus (koch) is the only confirmed vector of epizootic bovine abortion (eba) in the united states. the disease and its tick vector have historically been reported in the foothills of the sierra nevada mountains and coast ranges of california. in the past two decades, the range of eba has apparently expanded into southern oregon and northern nevada. possible explanations for this expansion include 1) increased recognition and reporting of eba in these regions; 2) ...200515962771
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