Results 131 to 140 of about 2,652 (163)

Resistance of Wolbachia to Trimethoprim: Insights into Genes Encoding Dihydrofolate Reductase, Thymidylate Synthase and Serine Hydroxymethyltransferase in the Rickettsiales. [PDF]

Insects
Fallon AM.
europepmc   +1 more source

Hard ticks (Acari: Ixodidae) infected by rickettsias: the first record of Rickettsia aeschlimannii (Rickettsiales: Rickettsiaceae) in Iran

Systematic and Applied Acarology, 2022
We aimed to investigate the molecular evidences on the role of ticks as vectors of Anaplasma and spotted fever group (SFG) Rickettsia species in southeastern Iran. A total of 815 tick samples were collected from different geographical regions of southern Kerman province.
Esmail Amiri Ghanat Saman, Asadollah Hosseini Chegeni   +1 more
openaire   +1 more source

Acquisition of Rickettsia rickettsii (Rickettsiales: Rickettsiaceae) by Haemaphysalis longicornis (Acari: Ixodidae) through co-feeding with infected Dermacentor variabilis (Acari: Ixodidae) in the laboratory

Journal of Medical Entomology, 2023
Abstract Haemaphysalis longicornis (Neumann) is an invasive ixodid tick originating from eastern Asia which recently has become established in the United States. In its native range, this tick can transmit several pathogens to animals and humans, but little is known about its ability to acquire and transmit pathogens native to the United
Britny Johnson, Alyssa N Snellgrove, Sara E McBride, Kris Hartzer, Michael L Levin, William L Nicholson   +5 more
openaire   +2 more sources

Isolation of “CandidatusRickettsia andeanae” (Rickettsiales: Rickettsiaceae) in Embryonic Cells of Naturally InfectedAmblyomma maculatum(Ixodida: Ixodidae)

Journal of Medical Entomology, 2013
The Gulf Coast tick, Amblyomma maculatum Koch, has become increasingly important in public health for its role as a vector of the recently recognized human pathogen, Rickettsia parkeri. More recently, these ticks were also found to harbor a novel spotted fever group rickettsia, "Candidatus Rickettsia andeanae." First identified in Peru, and ...
F A G, Ferrari, J, Goddard, G M, Moraru, W E C, Smith, A S, Varela-Stokes   +4 more
openaire   +2 more sources

Establishing Intracellular Infection: Escape from the Phagosome and Intracellular Colonization (Rickettsiaceae)

2014
Much progress has been made in one's understanding of the mechanism of rickettsial actin-based motility, although the process of cell-to-cell spread remains poorly understood. This chapter examines historical and recent developments in our understanding of how rickettsiae establish intracellular infection.
Matthew D. Welch, Shawna C. O. Reed, Cat M. Haglund   +2 more
openaire   +1 more source

Distribution of mosquito (Diptera: Culicidae) species and Wolbachia (Rickettsiales: Rickettsiaceae) infections during the bird immigration season in Pathumthani province, central Thailand

Parasitology Research, 2007
Mosquito distribution in the immigration bird-nested area, Pathumthani province, was investigated from August to December in 2006. Mosquitoes were collected by using CO2-baited Centers for Disease Control light traps in which dry ice was used as a source of CO2 to attract mosquitoes. Six traps were operated from 4 p.m. until 7 a.m.
Sonthaya, Tiawsirisup, Sawanya, Sripatranusorn, Kanisak, Oraveerakul, Surang, Nuchprayoon   +3 more
openaire   +2 more sources

Detection and Characterization of Rickettsia tsutsugamushi (Rickettsiales: Rickettsiaceae) in Infected Leptotrombidium (Leptotrombidium) fletcheri Chiggers (Acari: Trombiculidae) with the Polymerase Chain Reaction

Journal of Medical Entomology, 1994
We developed a method for detecting and characterizing the DNA of Rickettsia tsutsugamushi in chiggers (larval trombiculid mites) by polymerase chain reaction (PCR). Three procedures for extracting DNA from frozen chiggers were compared by evaluating the yield of PCR amplicand obtained with nine oligonucleotide primer pairs derived from the rickettsial
D J, Kelly, G A, Dasch, T C, Chan, T M, Ho   +3 more
openaire   +2 more sources

[Rickettsiaceae infections and fluoroquinolones].

Pathologie-biologie, 1988
Twenty nine patients with Rickettsiosis (Tick born fever, n: 22, Q fever, n: 7) has been treated with fluoroquinolones. These compounds was used alone n: 25 (Pefloxacin, n: 15; Ofloxacin, n: 10) or associated n: 4 (Pefloxacin + Rifampin). The general efficacy was excellent. Common Tick born fever and pulmonary forms of Q fever was fast cured.
A, Bertrand, F, Janbon, O, Jonquet, J, Reynes   +3 more
openaire   +1 more source

Natural infection of free-ranging capybaras (Hydrochoerus hydrochaeris) with Anaplasmataecea and Rickettsiaceae bacteria in the Iberá wetlands ecoregion, Argentina

Veterinary Research Communications
The current work assessed the infection with Ehrlichia and Anaplasma species, and exposure to Rickettsia spp. in free-ranging capybaras in the Iberá wetlands ecoregion in Argentina. By indirect immunofluorescence assay, 37 out of 51 (73%) capybara sera were seropositive to Rickettsia spp., with 23.5% and 4% samples considered homologous to Rickettsia ...
Lucas D, Monje, Ayelen T, Eberhardt, Paula J, Vaschalde, Johann, Barolin, Francisco B, Costa, Marcelo B, Labruna, Pablo M, Beldomenico   +6 more
openaire   +2 more sources

An initial survey for Wolbachia (Rickettsiales: Rickettsiaceae) infections in selected California mosquitoes (Diptera: Culicidae).

Journal of medical entomology, 2004
Knowledge of biogeographic variation in Wolbachia infection rates and inferred susceptibility to infection among different mosquito taxa has fundamental implications for the design and successful application of Wolbachia-based vector-borne disease control strategies.
Jason L, Rasgon, Thomas W, Scott
openaire   +1 more source