Dermacentor andersoni

Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia.
Related to Dermacentor andersoni: Dermacentor variabilis, Rocky Mountain wood tick


a genus of ticks parasitic on various animals, and vectors of disease-producing microorganisms.
Dermacentor anderso´ni a species of tick common in the western United States, parasitic on numerous wild mammals, most domestic animals, and humans. It is a vector of Rocky Mountain spotted fever, tularemia, Colorado tick fever, and Q fever in the United States, and is the cause of tick paralysis.
Dermacentor varia´bilis the chief vector of Rocky Mountain spotted fever in the central and eastern United States, the dog being the principal host of the adult forms, but also parasitic on cattle, horses, rabbits, and humans.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

Der·ma·cen·tor an·der·so'n·i

the wood tick; the vector of Rocky Mountain spotted fever; also transmits tularemia and causes tick paralysis; there are characteristic black and white markings on the large scutum of the male.
Farlex Partner Medical Dictionary © Farlex 2012


Medical entomology A hematophagous ectoparasitic arthropod of the superfamily Ixodoidea, which is either a hard tick–family Ixodidae or a soft tick–family Argasidae; ticks may be vectors of bacterial and viral infections. See Colorado tick fever, Deer tick, Lone Star tick, Lyme disease, Rocky Mountain spotted fever.
Ticks of interest  
Dermacentor andersoni, the North America vector, Rocky Mountain spotted fever–RMSF, Colorado tick fever–CTF, tularemia and tick paralysis
D marginatus Asian vector–Russian spring-summer fever virus, tick-borne encephalitis virus, possibly also Congo-Crimean hemorrhagic fever virus and Babesia reservoir for Omsk hemorrhagic fever virus
D occidentalis West coast North America–presumed vector for RMSF, CTF
D parumapertus Southwestern US–vector for RMSF, CTF
D variabilis Eastern US–vector for RMSF, tularemia, CTF, and tick paralysis; Asian and African ticks, vectors of Rickettsialpox
Ixodes dammini Northern deer tick–vector, Babesia microti, Lyme disease agent
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Lethal effect of Rickettsia rickettsii on its tick vector (Dermacentor andersoni).
In 1930, Becker associated the mild form of mountain fever with exposure to the Rocky Mountain wood tick (Dermacentor andersoni) and named the disease Colorado tick fever.
Serotypes of spotted fever group rickettsiae isolated from Dermacentor andersoni (Stiles) ticks in western Montana.
Hereditary transmission of tularemia infection by the wood tick, Dermacentor andersoni Stiles.
The virus distribution closely matches that of its vector Dermacentor andersoni. CTFV-Ca, identified as strain S6-14-03, was isolated from the blood of the white hare, L.
Nonpathogenic rickettsiae in Dermacentor andersoni: a limiting factor for the distribution of Rickettsia rickettsii.
Nonpathogenic rickcttsiae in Dermacentor andersoni: a limiting factor for the distribution of Rickettsia rickettsii.
rickettsii in the Rocky Mountain wood tick, Dermacentor andersoni (13).