| high prevalence of "candidatus rickettsia andeanae" and apparent exclusion of rickettsia parkeri in adult amblyomma maculatum (acari: ixodidae) from kansas and oklahoma. | amblyomma maculatum (the gulf coast tick), an aggressive, human-biting, nearctic and neotropical tick, is the principal vector of rickettsia parkeri in the united states. this pathogenic spotted fever group rickettsia species has been identified in 8-52% of questing adult gulf coast ticks in the southeastern united states. to our knowledge, r. parkeri has not been reported previously from adult specimens of a. maculatum collected in kansas or oklahoma. a total of 216 adult a. maculatum ticks wer ... | 2015 | 25773931 |
| gulf coast ticks (amblyomma maculatum) and rickettsia parkeri, united states. | geographic distribution of rickettsia parkeri in its us tick vector, amblyomma maculatum, was evaluated by pcr. r. parkeri was detected in ticks from florida, georgia, kentucky, mississippi, oklahoma, and south carolina, which suggests that a. maculatum may be responsible for additional cases of r. parkeri rickettsiosis throughout much of its us range. | 2007 | 17553257 |
| 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 |
| rickettsia parkeri and "candidatus rickettsia andeanae" in questing amblyomma maculatum (acari: ixodidae) from mississippi. | amblyomma maculatum koch (acari: ixodidae), the primary vector for rickettsia parkeri, may also be infected with a rickettsia of unknown pathogenicity, "candidatus rickettsia andeanae." infection rates with these rickettsiae vary geographically, and coinfected ticks have been reported. in this study, infection rates of r. parkeri and "ca r. andeanae" were evaluated, and rickettsial dna levels quantified, in 335 questing adult a. maculatum collected in 2013 (n = 95), 2014 (n = 139), and 2015 (n = ... | 2016 | 27773866 |