Results 61 to 70 of about 7,697 (229)

Genotypic identification of an undescribed spotted fever group rickettsia in ixodes ricinus from southwestern Spain [PDF]

, 1998
An undescribed rickettsia was directly analyzed with specific rickettsial molecular biology tools on Ixodes ricinus L. collected in different localities of the province of Cadiz (southwestern Spain).
Borobio, M. V., Casimiro-Soriguer Camacho, Ramón, Izquierdo Ayuso, Guillermo, Muniain Ezcurra, Miguel Angel, Márquez, Francisco J., Rodríguez-Baño, Jesús   +5 more
core   +1 more source

SURVEY OF Rickettsia spp. IN TICKS IN NACOGDOCHES COUNTY, TEXAS [PDF]

, 2018
Rickettsia parkeri is an obligate intracellular pathogenic bacterium that is commonly transmitted by the Gulf Coast tick, Amblyomma maculatum. Rickettsia parkeri is the causative agent of Rickettsia parkeri rickettsiosis, which is a disease characterized
Blakley, Nathaniel
core   +1 more source

Latinamerican guidelines of RIICER for diagnosis of tick-borne rickettsioses [PDF]

, 2014
Las rickettsiosis transmitidas por garrapatas son afecciones de distribución mundial, que por diferentes motivos se pueden considerar emergentes y reemergentes.
Abarca, Katia, Labruna, Marcelo Bahia, Mattar, Salim, Nava, Santiago, Oteo, José A., Sousa, Rita de, Venzal, José M., Zavala-Castro, Jorge   +7 more
core   +2 more sources

Automated identification of spotted‐fever tick vectors using convolutional neural networks

Medical and Veterinary Entomology, EarlyView.
We evaluate the performance of convolutional neural networks (CNN) AlexNet, ResNet‐50 and MobileNetV2 for the automated identification of tick species capable of transmitting spotted fever. CNNs achieved accuracy rates of ~90% in identifying ticks and showed sensitivities of 59%–100% according to species, sex, position or image resolution.
Isadora R. C. Gomes, Vinícius L. Miranda, José Fabrício C. Leal, Igor P. Oliveira, Paula J. Silva, Karla Bitencourth, Claudio M. Rodrigues, Liege R. Siqueira, Marcelo B. Labruna, Gilberto S. Gazeta, Marinete Amorim, Rodrigo Gurgel‐Gonçalves   +11 more
wiley   +1 more source

Spatial and temporal analyses of Dermacentor variabilis (Say) (Acari: Ixodidae) in central and eastern Canada

Medical and Veterinary Entomology, Volume 39, Issue 3, Page 515-524, September 2025.
One thousand one hundred ninety‐eight adult Dermacentor variabilis (Say), a species of veterinary and human medical importance, were collected from companion animals in central and eastern Canada. Peaks in adult D. variabilis submissions occurred in May and June across the provinces. Most submissions of adult D.
Grace K. Nichol, J. Scott Weese, Shaun J. Dergousoff, Amy L. Greer, Katie M. Clow   +4 more
wiley   +1 more source

Detection of Rickettsia spp. in Rhipicephalus sanguineus (sensu lato) collected from free-roaming dogs in Coahuila state, northern Mexico

Parasites & Vectors, 2019
Background The aim of this study was to detect and molecularly identify Rickettsia spp. in Rhipicephalus sanguineus (sensu lato) collected from free-roaming dogs in 30 communities from five municipalities in the south of Coahuila State, northern Mexico ...
Aldo I. Ortega-Morales, Erika Nava-Reyna, Verónica Ávila-Rodríguez, Vicente H. González-Álvarez, Antonio Castillo-Martínez, Quetzaly K. Siller-Rodríguez, Alejandro Cabezas-Cruz, Filipe Dantas-Torres, Consuelo Almazán   +8 more
doaj   +1 more source

Development of a duplex real-time PCR for the detection of Rickettsia spp. and typhus group rickettsia in clinical samples. [PDF]

, 2011
Molecular diagnosis using real-time polymerase chain reaction (PCR) may allow earlier diagnosis of rickettsiosis. We developed a duplex real-time PCR that amplifies (1) DNA of any rickettsial species and (2) DNA of both typhus group rickettsia, that is ...
Cometta, A., Giulieri, S., Greub, G., Jaton, K., Trellu, L.T.   +4 more
core   +1 more source

Rickettsia spp. and Anaplasmataceae in Ticks From Domestic Animals in Northern Colombia

Zoonoses and Public Health, Volume 72, Issue 5, Page 421-434, August 2025.
ABSTRACT Introduction Tick‐borne diseases have a significant impact on public and animal health and represent a considerable financial burden on livestock farming. However, in many regions of Latin America, comprehensive epidemiological data, including species identification, geographical distribution and molecular profiling of ticks and their ...
Maria Badillo‐Viloria, Salim Mattar, Susana Remesar, Steffania de la Rosa‐Jaramillo, Ignacio García‐Bocanegra, Jorge Miranda, Aránzazu Portillo, Cristina Cervera‐Acedo, José Antonio Oteo, David Cano‐Terriza   +9 more
wiley   +1 more source

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   +1 more source

MicroRNA Signature of Human Microvascular Endothelium Infected with Rickettsia rickettsii. [PDF]

Int J Mol Sci, 2017
MicroRNAs (miRNAs) mediate gene silencing by destabilization and/or translational repression of target mRNA. Infection of human microvascular endothelial cells as primary targets of Rickettsia rickettsii, the etiologic agent of Rocky Mountain spotted fever, triggers host responses appertaining to alterations in cellular gene expression.
Sahni A, Narra HP, Patel J, Sahni SK.
europepmc   +5 more sources