Results 31 to 40 of about 1,725 (169)

Molecular Detection of Rickettsia felis and Rickettsia bellii in Mosquitoes [PDF]

Vector-Borne and Zoonotic Diseases, 2019
To add to the limited information on Rickettsia in mosquitoes in China, we carried out a PCR survey on convenience samples of 3051 mosquitoes collected with hand nets in and around domestic dwellings in 25 provinces. Five species of mosquitoes were identified: Culex pipiens pallens (n = 1620), Aedes albopictus (806), Armigeres subalbatus (377 ...
Jilei, Zhang, Guangwu, Lu, Jing, Li, Patrick, Kelly, Min, Li, Jiawei, Wang, Ke, Huang, Haixiang, Qiu, Jinfeng, You, Rong, Zhang, Yaoyao, Wang, Yuanyuan, Zhang, Hongzhuan, Wu, Chengming, Wang   +13 more
openaire   +2 more sources

Capybara (Hydrochoerus hydrochaeris) exposure to Rickettsia in the Federal District of Brazil, a non-endemic area for Brazilian spotted fever

Revista Brasileira de Parasitologia Veterinária, 2021
In this study, whole blood samples and ticks were collected from 57 capybaras in recreational areas in the Federal District, Brazil, aiming to investigate the presence of Rickettsia spp.
Ana Paula Nunes de Quadros, George Magno Sousa do Rêgo, Thamiris Figueiredo da Silva, Andréa de Moraes Carvalho, Thiago Fernandes Martins, Lina de Campos Binder, Márcio Botelho de Castro, Paulo Sérgio Ribeiro de Mattos, Marcelo Bahia Labruna, Giane Regina Paludo   +9 more
doaj   +1 more source

Identification of two leafminer parasitoids (Hymenoptera: Eulophidae), Neochrysocharis formosa and Proacrias sp. from Australia, with both showing thelytoky and infection by Rickettsia

Austral Entomology, Volume 61, Issue 3, Page 358-369, August 2022., 2022
Abstract Liriomyza huidobrensis, L. sativae and L. trifolii are polyphagous agromyzid leafminers that have recently arrived in Australia, posing a threat to Australian vegetable and ornamental crops. Adventive and endemic hymenopteran parasitoids of agromyzid leafminers already present in Australia should assist in the management of these invasive ...
Xuefen Xu, Ary A Hoffmann, Paul A Umina, Marianne P Coquilleau, Alex Gill, Peter M Ridland   +5 more
wiley   +1 more source

Detection of Rickettsia spp. in Animals and Ticks in Midwestern Brazil, Where Human Cases of Rickettsiosis Were Reported

Animals, 2023
Brazilian spotted fever (BSF) is the most important tick-borne diseases affecting humans in Brazil. Cases of BSF have recently been reported in the Goiás state, midwestern Brazil.
Lucianne Cardoso Neves, Warley Vieira de Freitas Paula, Luiza Gabriella Ferreira de Paula, Bianca Barbara Fonseca da Silva, Sarah Alves Dias, Brenda Gomes Pereira, Bruno Sérgio Alves Silva, Anaiá da Paixão Sevá, Filipe Dantas-Torres, Marcelo B. Labruna, Felipe da Silva Krawczak   +10 more
doaj   +1 more source

Molecular Detection of Rickettsia spp. in Free Living Ticks in Military Instruction Areas in Southeast Brazil [PDF]

Brazilian Archives of Biology and Technology, 2023
The present study aimed for the molecular detection of Rickettsia spp. in ticks collected from military training areas in southeastern Brazil. Previously, a total of 9,374 free-living ticks in 66 military instruction areas of five Military Organizations (
Rubens Fabiano Soares Prado, Izabela Mesquita Araújo, Gilliard Ferreira, Bruna de Azevedo Baêta, Aline Nascimento Furtado de Freitas, Alexandro Guterres, Adivaldo Henrique da Fonseca, Matheus Dias Cordeiro   +7 more
doaj   +1 more source

Ancestral Divergence of Rickettsia bellii from the Spotted Fever and Typhus Groups of Rickettsia and Antiquity of the Genus Rickettsia [PDF]

International Journal of Systematic Bacteriology, 1994
The eubacterial genus Rickettsia belongs to the alpha subgroup of the phylum Proteobacteria. This genus is usually divided into three biotypes on the basis of vector host and antigenic cross-reactivity characteristics. However, the species Rickettsia bellii does not fit into this classification scheme; this organism has characteristics common to both ...
D R, Stothard, J B, Clark, P A, Fuerst
openaire   +2 more sources

Genomic evolution and adaptation of arthropod-associated Rickettsia

Scientific Reports, 2022
Rickettsia species are endosymbionts hosted by arthropods and are known to cause mild to fatal diseases in humans. Here, we analyse the evolution and diversity of 34 Rickettsia species using a pangenomic meta-analysis (80 genomes/41 plasmids ...
Khalid El Karkouri, Eric Ghigo, Didier Raoult, Pierre-Edouard Fournier   +3 more
doaj   +1 more source

Significant Growth by Rickettsia Species within Human Macrophage-Like Cells Is a Phenotype Correlated with the Ability to Cause Disease in Mammals

Pathogens, 2021
Rickettsia are significant sources of tick-borne diseases in humans worldwide. In North America, two species in the spotted fever group of Rickettsia have been conclusively associated with disease of humans: Rickettsia rickettsii, the causative agent of ...
M. Nathan Kristof, Paige E. Allen, Lane D. Yutzy, Brandon Thibodaux, Christopher D. Paddock, Juan J. Martinez   +5 more
doaj   +1 more source

Detection of antibodies anti-Rickettsia spp. in dogs and horses in the state of Mato Grosso, Brazil

Semina: Ciências Agrárias, 2014
This study evaluated the infection caused by Rickettsia spp. among dogs and horses from Mato Grosso State. A total of 384 dogs and 460 horses were tested by the Indirect Immunofluorescence Assay (IFA) for Rickettsia rickettsii, Rickettsia parkeri ...
Marcus Vinicius de Amorim , Andréia Lima Tomé Melo , André Luis Santos de Freitas , Ricardo Pereira Laub, Rosane Marini Melo, Daniel Moura de Aguiar , Anderson Castro Soares de Oliveira , Jonas Moraes-Filho, Marcelo Bahia Labruna , Richard de Campos Pacheco   +9 more
doaj   +1 more source

Infecção por riquétsias em carrapatos de aves silvestres em duas ecorregiões da Argentina [PDF]

, 2016
Several tick-borne Rickettsia species are recognized human pathogens in Argentina. Here we evaluated rickettsial infection in ticks collected on passerine birds during 2011-2012 in two eco-regions of Argentina.
Borges Costa, Francisco, Diaz, Luis Adrian, Flores, Fernando Sebastián, Labruna, Marcelo Bahía, Nava, Santiago   +4 more
core   +1 more source