| rickettsia parkeri as a paradigm for multiple causes of tick-borne spotted fever in the western hemisphere. | among the many contributions made to rickettsiology by entomologist and rickettsiologist ralph r. parker was his discovery in 1937 of a novel rickettsia isolated from the gulf coast tick, amblyomma maculatum. this bacterium was subsequently characterized as a unique rickettsial species in 1965 and named rickettsia parkeri in honor of its discoverer. during the next several decades r. parkeri was generally considered as one of several "nonpathogenic" spotted fever group (sfg) rickettsiae that res ... | 2005 | 16481534 |
| rickettsia parkeri infection after tick bite, virginia. | we describe a man with a febrile illness and an eschar that developed at the site of a tick bite. rickettsia parkeri was detected and isolated from the eschar. this report represents the second documented case of r. parkeri rickettsiosis in a us serviceman in eastern virginia. | 2007 | 17479907 |
| rickettsia parkeri in gulf coast ticks, southeastern virginia, usa. | we report evidence that amblyomma maculatum tick populations are well established in southeastern virginia. we found that 43.1% of the adult gulf coast ticks collected in the summer of 2010 carried rickettsia parkeri, suggesting that persons living in or visiting southeastern virginia are at risk for infection with this pathogen. | 2011 | 21529406 |
| high rates of rickettsia parkeri infection in gulf coast ticks (amblyomma maculatum) and identification of "candidatus rickettsia andeanae" from fairfax county, virginia. | the gulf coast tick, amblyomma maculatum, is a vector of rickettsia parkeri, a recently identified human pathogen that causes a disease with clinical symptoms that resemble a mild form of rocky mountain spotted fever. because the prevalence of r. parkeri infection in geographically distinct populations of a. maculatum is not fully understood, a. maculatum specimens collected as part of a tick and pathogen surveillance system in fairfax county, virginia, were screened to determine pathogen infect ... | 2011 | 21867421 |
| ticks and spotted fever group rickettsiae of southeastern virginia. | the incidence of tick-borne rickettsial disease in the southeastern united states has been rising steadily through the past decade, and the range expansions of tick species and tick-borne infectious agents, new and old, has resulted in an unprecedented mix of vectors and pathogens. the results of an ongoing 4-year surveillance project describe the relative abundance of questing tick populations in southeastern virginia. since 2009, more than 66,000 questing ticks of 7 species have been collected ... | 2013 | 24201057 |
| spotted fever group rickettsiae in multiple hard tick species from fairfax county, virginia. | spotted fever group rickettsiosis (sfgr) is a potentially fatal disease that has displayed increasing incidence in the united states in recent years. the most well-known and severe type of this disease is rocky mountain spotted fever, but there are other mild forms that occur. recently, human infection with rickettsia parkeri has been reported and linked with the tick amblyomma maculatum. in 2010, a population of r. parkeri-infected a. maculatum was discovered in fairfax county, virginia, leadin ... | 2014 | 24978651 |
| rickettsia parkeri transmission to amblyomma americanum by cofeeding with amblyomma maculatum (acari: ixodidae) and potential for spillover. | amblyomma americanum (l.) is a human-biting ixodid tick distributed throughout much of the southeastern united states. rickettsia parkeri is a member of the spotted fever group rickettsiae and causes a febrile illness in humans commonly referred to as "tidewater spotted fever" or "r. parkeri rickettsiosis." although the gulf coast tick, amblyomma maculatum koch, is the primary vector of r. parkeri, a small proportion of a. americanum have also been shown to harbor r. parkeri. the purpose of this ... | 2015 | 26336226 |