Ornithodoros hermsi

Or·ni·thod·o·ros herm·'si

a tick species that is a rodent parasite and vector of relapsing fever spirochetes, such as Borrelia hermsii, in the western U.S. and Canada.
Farlex Partner Medical Dictionary © Farlex 2012
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Ecological niche modeling and distribution of Ornithodoros hermsi associated with tick-borne relapsing fever in western North America.
The specific vector of this spirochete is the Ornithodoros hermsi tick (7), which is found in higher-elevation coniferous forests where its preferred rodent hosts, primarily squirrels and chipmunks, are also found (6).
hermsii, and marked the first time this organism and its tick vector, Ornithodoros hermsi, were shown to exist in Montana, said Tom G.
Most TBRF cases in the United States are caused by Borrelia hermsii and transmitted by Ornithodoros hermsi ticks.
The possible role of birds as hosts for the vector Ornithodoros hermsi ticks has been demonstrated elsewhere (4).
hermsii, transmitted by Ornithodoros hermsi ticks, causes relapsing fever in the Western United States, and B.
One live soft tick (Ornithodoros hermsi), four chipmunks, one wood rat, and two deer mice were recovered.
The initial human cases of relapsing fever in California preceded identification of the vector, which was discovered to be a previously unidentified tick subsequently named Ornithodoros hermsi (4,5).
Tickborne relapsing fever in humans in North America is most often caused by the spirochete Borrelia hermsii, which is transmitted by its argasid tick vector, Ornithodoros hermsi (1).
hermsii in our culture collection originated in New Mexico, Colorado, California, and Washington State and were either from Ornithodoros hermsi ticks, patients with relapsing fever, or, in one case, a bird (11).
Borrelia hermsii was isolated from the blood of two patients, and Ornithodoros hermsi ticks were collected from the cabin, the first demonstration of this bacterium and tick in Montana.