| serologic and molecular evidence of ehrlichia spp. in coyotes in california. | in order to determine the role of coyotes in the epidemiology of granulocytic and monocytic ehrlichial agents in california (usa), we tested 149 serum samples for antibodies against ehrlichia equi, e. risticii, and e. canis, using an indirect immunofluorescent antibody test. polymerase chain reaction (pcr) assay was used to survey for the presence of members of the e. phagocytophila genogroup, e. risticii and e. canis in blood samples of 95 coyotes. sixty-eight (46%) samples were seropositive fo ... | 2000 | 10941735 |
| gis-facilitated spatial epidemiology of tick-borne diseases in coyotes (canis latrans) in northern and coastal california. | ixodes pacificus is the main tick vector for transmission of anaplasma phagocytophilum and borrelia burgdorferi to large vertebrates in california. the present study was undertaken in i. pacificus-infested counties in california to examine spatial and temporal relationships among a. phagocytophilum and b. burgdorferi-exposed coyotes with vegetation type and climate. the overall a. phagocytophilum and b. burgdorferi seroprevalences were 39.5% (n=215) and 18.9% (n=148), respectively, with no assoc ... | 2005 | 15857659 |
| environmental factors associated with bartonella vinsonii subsp. berkhoffii seropositivity in free-ranging coyotes from northern california. | bartonella vinsonii subsp. berkhoffii is a newly recognized pathogen of domestic dogs and humans. coyotes (canis latrans) are considered an important reservoir of this bacterium in the western united states, but its vectors are still unknown. our objective was to identify environmental factors associated with bartonella antibody prevalence in 239 coyotes from northern california, using an enzyme-linked immunosorbent assay. in addition, associations were evaluated between b. v. berkhoffii and two ... | 2005 | 16011426 |
| prevalence of antibodies to spotted fever group rickettsia spp. and ehrlichia spp. in coyotes (canis latrans) in oklahoma and texas, usa. | coyotes (canis latrans) are commonly infested with ticks, including amblyomma americanum, the predominant vector of ehrlichia chaffeensis and ehrlichia ewingii; dermacentor variabilis, an important vector of rickettsia rickettsii; and amblyomma maculatum, a major vector of rickettsia parkeri, a spotted fever group (sfg) rickettsia. to determine the degree to which coyotes are infected with or exposed to tick-borne bacterial disease agents, serum samples collected from coyotes in oklahoma and tex ... | 2013 | 23778619 |