Results 21 to 30 of about 1,833 (165)

Rickettsia parkeri in Amblyomma americanum Ticks, Tennessee and Georgia, USA

Emerging Infectious Diseases, 2009
To determine the geographic distribution of the newly recognized human pathogen Rickettsia parkeri, we looked for this organism in ticks from Tennessee and Georgia, USA. Using PCR and sequence analysis, we identified R.
Sara B. Cohen, Michael J. Yabsley, Laurel E. Garrison, James D. Freye, Brett G. Dunlap, John R. Dunn, Daniel G. Mead, Timothy F. Jones, Abelardo C. Moncayo   +8 more
doaj   +4 more sources

Detecting Rickettsia parkeri Infection from Eschar Swab Specimens

Emerging Infectious Diseases, 2013
The typical clinical presentation of several spotted fever group Rickettsia infections includes eschars. Clinical diagnosis of the condition is usually made by analysis of blood samples.
Todd Myers, Tahaniyat Lalani, Mike Dent, Ju Jiang, Patrick L. Daly, Jason D. Maguire, Allen L. Richards   +6 more
doaj   +4 more sources

Amblyomma maculatum Feeding Augments Rickettsia parkeri Infection in a Rhesus Macaque Model: A Pilot Study. [PDF]

PLoS ONE, 2015
Rickettsia parkeri is an emerging eschar-causing human pathogen in the spotted fever group of Rickettsia and is transmitted by the Gulf coast tick, Amblyomma maculatum.
Kaikhushroo H Banajee, Monica E Embers, Ingeborg M Langohr, Lara A Doyle, Nicole R Hasenkampf, Kevin R Macaluso   +5 more
doaj   +2 more sources

Rickettsia parkeriRickettsiosis, Arizona, USA [PDF]

Emerging Infectious Diseases, 2016
In the United States, all previously reported cases of Rickettsia parkeri rickettsiosis have been linked to transmission by the Gulf Coast tick (Amblyomma maculatum). Here we describe 1 confirmed and 1 probable case of R. parkeri rickettsiosis acquired in a mountainous region of southern Arizona, well beyond the recognized geographic range of A ...
Kristen L. Herrick, Sandra A. Pena, Hayley Yaglom, Brent J. Layton, Amanda Moors, Amanda D. Loftis, Marah E. Condit, Joseph Singleton, Cecilia Y. Kato, Amy M. Denison, Dianna Ng, James W. Mertins, Christopher D. Paddock   +12 more
openaire   +4 more sources

Seroepidemiological survey to investigate Rickettsia rickettsii and Rickettsia parkeri in municipalities of the southeast Brazil. [PDF]

Rev Inst Med Trop Sao Paulo
ABSTRACT Spotted fever is a tick-borne rickettsiosis caused by several Rickettsia species—including R. rickettsii, R. parkeri, and others—with varying degrees of pathogenicity. Its nonspecific symptoms often lead to misdiagnosis such as dengue. This study investigated anti-R. rickettsii and R.
Franco MB, Fonseca GC, Sousa ACP, Rostkwoska C, Pajuaba ACAM, Mineo JR, Szabó MPJ, Oliveira SV.   +7 more
europepmc   +6 more sources

Rickettsia parkeri in Dermacentor parumapertus Ticks, Mexico. [PDF]

Emerg Infect Dis, 2018
During a study to identify zoonotic pathogens in northwestern Mexico, we detected the presence of a rickettsial agent in Dermacentor parumapertus ticks from black-tailed jackrabbits (Lepus californicus). Comparison of 4 gene sequences (gltA, htrA, ompA, and ompB) of this agent showed 99%-100% identity with sequences of Rickettsia parkeri.
Sánchez-Montes S, López-Pérez AM, Guzmán-Cornejo C, Colunga-Salas P, Becker I, Delgado-de la Mora J, Licona-Enríquez JD, Delgado-de la Mora D, Karpathy SE, Paddock CD, Suzán G.   +10 more
europepmc   +6 more sources

Infección por rickettsia en capibaras (Hydrochoerus hydrochaeris) de São Paulo, Brasil: evidencia serológica de infección por Rickettsia bellii y Rickettsia parkeri

Biomédica: revista del Instituto Nacional de Salud, 2007
Introducción. En Brasil, los capibaras (Hydrochoerus hydrochaeris) son importantes huéspedes para garrapatas del género Amblyomma, las cuales transmiten rickettsiosis a humanos y animales.
Richard C. Pacheco, Mauricio C. Horta, Jonas Moraes-Filho, Alexandre C. Ataliba, Adriano Pinter, Marcelo B. Labruna   +5 more
doaj   +3 more sources

Immunoproteomic profiling of Rickettsia parkeri and Rickettsia amblyommii

Ticks and Tick-borne Diseases, 2015
Rickettsia parkeri is an Amblyomma-associated, spotted fever group Rickettsia species that causes an eschar-associated, febrile illness in multiple countries throughout the Western Hemisphere. Many other rickettsial species of known or uncertain pathogenicity have been detected in Amblyomma spp.
Pornwiroon, Walairat, Bourchookarn, Apichai, Paddock, Christopher D., Macaluso, Kevin R.   +3 more
openaire   +3 more sources

Gulf Coast Ticks (Amblyomma maculatum) and Rickettsia parkeri, United States

Emerging Infectious Diseases, 2007
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.
John W. Sumner, Lance A. Durden, Jerome Goddard, Ellen Y. Stromdahl, Kerry L. Clark, Will K. Reeves, Christopher D. Paddock   +6 more
doaj   +2 more sources

A Confirmed Case of Rickettsia parkeri Infection in a Traveler from Uruguay [PDF]

The American Society of Tropical Medicine and Hygiene, 2013
The first confirmed case of Rickettsia parkeri infection in Uruguay is reported. To date, in South America, molecularly confirmed cases of human infection have been found in Argentina and probably, Brazil. Our patient returned to Spain after a 7-day trip to Colonia Suiza (Southwestern Uruguay).
Aránzazu, Portillo, Concepción, García-García, M Mercedes, Sanz, Sonia, Santibáñez, José M, Venzal, José A, Oteo   +5 more
openaire   +4 more sources