Ixodes pacificus (Acari: Ixodidae) as a Vector of Ehrlichia equi (Rickettsiales: Ehrlichieae)

P. J. Richter; R. B. Kimsey; J. E. Madigan; J. E. Barlough; J. S. Dumler; D. L. Brooks

doi:10.1093/jmedent/33.1.1

Ixodes pacificus (Acari: Ixodidae) as a Vector of Ehrlichia equi (Rickettsiales: Ehrlichieae)

P. J. Richter, R. B. Kimsey, J. E. Madigan, J. E. Barlough, J. S. Dumler, D. L. Brooks

Research output: Contribution to journal › Article › peer-review

131 Scopus citations

Abstract

Ehrlichia equi, a rickettsia described from horses in California 30 yr ago, causes equine granulocytic ehrlichiosis throughout the Americas and possibly Europe. Here, we report experimental transmission of E. equi from infected to susceptible horses through bites of western blacklegged ticks, Ixodes pacificus (Cooley & Kohls). In preliminary field studies, only I. pacificus consistently infested horses and vegetation at 3 locations with contemporary cases of equine ehrlichosis, and in particular, I. pacificus was the only species found attached to all of the infected horses. Exposure to bites of ticks in the genus Ixodes poses previously unrecognized and serious health risks to humans and animals.

Original language	English (US)
Pages (from-to)	1-5
Number of pages	5
Journal	Journal of medical entomology
Volume	33
Issue number	1
DOIs	https://doi.org/10.1093/jmedent/33.1.1
State	Published - Jan 1996
Externally published	Yes

Keywords

Disease
Ehrlichia
Ixodes
Ticks
Vector
Zoonosis

ASJC Scopus subject areas

Parasitology
General Veterinary
Insect Science
Infectious Diseases

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10.1093/jmedent/33.1.1

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title = "Ixodes pacificus (Acari: Ixodidae) as a Vector of Ehrlichia equi (Rickettsiales: Ehrlichieae)",

abstract = "Ehrlichia equi, a rickettsia described from horses in California 30 yr ago, causes equine granulocytic ehrlichiosis throughout the Americas and possibly Europe. Here, we report experimental transmission of E. equi from infected to susceptible horses through bites of western blacklegged ticks, Ixodes pacificus (Cooley & Kohls). In preliminary field studies, only I. pacificus consistently infested horses and vegetation at 3 locations with contemporary cases of equine ehrlichosis, and in particular, I. pacificus was the only species found attached to all of the infected horses. Exposure to bites of ticks in the genus Ixodes poses previously unrecognized and serious health risks to humans and animals.",

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author = "Richter, {P. J.} and Kimsey, {R. B.} and Madigan, {J. E.} and Barlough, {J. E.} and Dumler, {J. S.} and Brooks, {D. L.}",

year = "1996",

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doi = "10.1093/jmedent/33.1.1",

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T2 - Ixodidae) as a Vector of Ehrlichia equi (Rickettsiales: Ehrlichieae)

AU - Richter, P. J.

AU - Kimsey, R. B.

AU - Madigan, J. E.

AU - Barlough, J. E.

AU - Dumler, J. S.

AU - Brooks, D. L.

PY - 1996/1

Y1 - 1996/1

N2 - Ehrlichia equi, a rickettsia described from horses in California 30 yr ago, causes equine granulocytic ehrlichiosis throughout the Americas and possibly Europe. Here, we report experimental transmission of E. equi from infected to susceptible horses through bites of western blacklegged ticks, Ixodes pacificus (Cooley & Kohls). In preliminary field studies, only I. pacificus consistently infested horses and vegetation at 3 locations with contemporary cases of equine ehrlichosis, and in particular, I. pacificus was the only species found attached to all of the infected horses. Exposure to bites of ticks in the genus Ixodes poses previously unrecognized and serious health risks to humans and animals.

AB - Ehrlichia equi, a rickettsia described from horses in California 30 yr ago, causes equine granulocytic ehrlichiosis throughout the Americas and possibly Europe. Here, we report experimental transmission of E. equi from infected to susceptible horses through bites of western blacklegged ticks, Ixodes pacificus (Cooley & Kohls). In preliminary field studies, only I. pacificus consistently infested horses and vegetation at 3 locations with contemporary cases of equine ehrlichosis, and in particular, I. pacificus was the only species found attached to all of the infected horses. Exposure to bites of ticks in the genus Ixodes poses previously unrecognized and serious health risks to humans and animals.

KW - Disease

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KW - Ixodes

KW - Ticks

KW - Vector

KW - Zoonosis

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Ixodes pacificus (Acari: Ixodidae) as a Vector of Ehrlichia equi (Rickettsiales: Ehrlichieae)

Abstract

Keywords

ASJC Scopus subject areas

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