Results 161 to 169 of about 1,725 (169)

Molecular Detection ofRickettsia bellii,Rickettsia montanensis, andRickettsia rickettsiiin aDermacentor variabilisTick from Nature

Vector-Borne and Zoonotic Diseases, 2010
Rickettsial diseases, such as Rocky Mountain spotted fever, pose a public health threat because of humans' interrelationship with common arthropod species, such as ticks, mites, fleas, and lice. Individuals may come in contact with these vectors of disease on a fairly regular basis either directly or indirectly through pets or wildlife species, at home
Jennifer R, Carmichael, Paul A, Fuerst
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Detection of Rickettsia amblyommatis and Rickettsia bellii in ticks collected from pet dogs in peri-urban and rural areas in Yucatan, Mexico

Experimental and Applied Acarology, 2023
Rickettsia species are bacteria that may cause multiple diseases in animals and humans, via transmission through multiple arthropod vectors. Routine surveillance of Rickettsia spp. within vectors is critical to determine their presence and risk to mammalian hosts within human populations.
Edwin Vázquez-Guerrero, Guadalupe C. Reyes-Solís, Alan E. Cano-Ravell, Carlos Machain-Williams, Marcia Leyva-Gastélum, Paulina Estrada-de los Santos, Gerardo Álvarez-Hernández, J. Antonio Ibarra   +7 more
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Rickettsia bellii and Rickettsia amblyommii in Amblyomma ticks from the State of Rondônia, Western Amazon, Brazil.

Journal of medical entomology, 2005
This study evaluates the rickettsial presence in Amblyomma ticks from eight areas of the Amazon forest in Rondônia, Brazil. The following tick species (number in parentheses) were examined: Amblyomma ovale Koch (121), Amblyomma cajennense (F.) (41), Amblyomma naponense (Packard) (36), Amblyomma scalpturatum Neumann (35), Amblyomma oblongoguttatum Koch (
Marcelo B, Labruna, Ted, Whitworth, Donald H, Bouyer, Jere, McBride, Luis Marcelo A, Camargo, Erney P, Camargo, Vsevolod, Popov, David H, Walker   +7 more
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Rickettsial antibodies andRickettsia belliidetection in lagomorphs and their ectoparasites in Northern Baja California, Mexico

Journal of Medical Entomology, 2023
AbstractLagomorphs—principally rabbits and hares—have been implicated as hosts for vectors and reservoirs for pathogens associated with multiple rickettsial diseases. Western North America is home to diverse rickettsial pathogens which circulate among multiple wild and domestic hosts and tick and flea vectors.
Laura H Backus, Andrés M López-Pérez, Jacob Marcek, Laura Shultz, Oscar E Zazueta, Savannah Shooter, Janet Foley   +6 more
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Isolation of Rickettsia rickettsii and Rickettsia bellii in Cell Culture from the Tick Amblyomma aureolatum in Brazil

Annals of the New York Academy of Sciences, 2006
Abstract:  Brazilian spotted fever (BSF) is a highly lethal disease caused by Rickettsia rickettsii. In the present study, rickettsial infection was evaluated in 669 Amblyomma aureolatum adult ticks collected from naturally infested dogs in Taiaçupeba, a BSF‐endemic area in the state of São Paulo. Ten (1.49%) ticks were infected with Rickettsia bellii,
Adriano, Pinter, Marcelo B, Labruna
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Vector competence and transovarial transmission of Rickettsia rickettsii in Rickettsia bellii-infected and -uninfected Amblyomma dubitatum ticks

Experimental and Applied Acarology
Brazilian spotted fever (BSF) is endemic in southeastern Brazil, where Amblyomma sculptum is the main vector incriminated in the transmission of R. rickettsii to humans. In many BSF-endemic areas capybaras are the main hosts for A. sculptum and also efficient amplifiers of R. rickettsii for this tick species.
Lina C, Binder, Carlos E C, Fanchini, Herbert S, Soares, Matheus P, Martins, Igor S, Silito, Marcelo B, Labruna   +5 more
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Experimental Infection of the OpossumDidelphis auritabyRickettsia felis, Rickettsia bellii, andRickettsia parkeriand Evaluation of the Transmission of the Infection to TicksAmblyomma cajennenseandAmblyomma dubitatum

Vector-Borne and Zoonotic Diseases, 2010
This work evaluated the infection of opossums (Didelphis aurita) by Rickettsia felis, Rickettsia bellii, and Rickettsia parkeri and their role as amplifier hosts for horizontal transmission to Amblyomma cajennense and/or Amblyomma dubitatum ticks. Infection in D. aurita was induced by intraperitoneal inoculation with R.
Maurício C, Horta, Guilherme S, Sabatini, Jonas, Moraes-Filho, Maria, Ogrzewalska, Raoní B, Canal, Richard C, Pacheco, Thiago F, Martins, Eliana R, Matushima, Marcelo B, Labruna   +8 more
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Natural Infection, Transovarial Transmission, and Transstadial Survival of Rickettsia bellii in the Tick Ixodes loricatus (Acari: Ixodidae) from Brazil

Annals of the New York Academy of Sciences, 2006
Abstract:  An Ixodes loricatus engorged female, infected with Rickettsia bellii, was collected from an opossum (Didelphis aurita) in Mogi das Cruzes, São Paulo State, Brazil. Two consecutive laboratory tick generations (F1 and F2) reared from this single engorged female were evaluated for Rickettsia infection by polymerase chain reaction (PCR ...
Mauricio C, Horta, Adriano, Pinter, Teresinha T S, Schumaker, Marcelo B, Labruna   +3 more
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First European record of Rickettsia bellii in Amblyomma rotundatum from Rhinella marina imported to Poland

Experimental and Applied Acarology
This study reports on the first documented case of Amblyomma rotundatum ticks, a species typically found in the Americas, parasitising an imported toad in Poland. A total of 12 ticks were collected from a single Rhinella marina toad. These ticks were identified as female specimens of A.
Dagmara Dyczko, Dominik M. Szymański, Dawid Szymański, Maciej Kupczak, Krzysztof Kolenda   +4 more
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