Results 151 to 160 of about 3,251,507 (201)

Identification of Rickettsial Infections (Rickettsia sp. TH2014) in Ctenocephalides orientis Fleas (Siphonaptera: Pulicidae)

Journal of medical entomology, 2018
Rickettsia felis (Rickettsiales: Rickettsiaceae) is an emergent human pathogen that causes febrile illnesses in various parts of the world. This study describes the identification and growth characteristics of a R.
K. Kho, S. Tay
semanticscholar   +1 more source

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

Rickettsioses

Oxford Textbook of Medicine, 2020
Rickettsioses are mild to life-threatening zoonoses caused by obligate intracellular bacteria of the order Rickettsiales (family Rickettsiaceae). Arthropods, including ticks, fleas, and mites, are implicated as their vectors, reservoirs, or amplifiers ...
Karolina Griffiths, C. Eldin, D. Raoult, P. Parola   +3 more
semanticscholar   +1 more source

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

Adaptation of archival egg-cultured Orientia tsutsugamushi to L929 mammalian cells enables persistent qPCR-detectable growth

Asia-Pacific Journal of Molecular Biology and Biotechnology
Rickettsial infections are a leading cause of febrile illness in Southeast Asia and Malaysia, although they are often underreported. Rickettsial pathogens largely fall within the genera Rickettsia and Orientia and classified within the Rickettsiaceae ...
Siti Nur Zawani Rosli, Sitti Rahmawati Dimeng, Wan Amirul Syazwan Wan Ahmad Munawar, Nur Afrina Mohd Hendri, Jama’ayah Mohamed Zahidi, Tay Bee Yong, Rohaidah Hashim, M. Abdad, Norazah Ahmad, Siti Roszilawati Ramli   +9 more
semanticscholar   +1 more source

Establishment of Orientia tsutsugamushi Lc-1 (Rickettsiales: Rickettsiaceae) infection in ICR outbred mice (Rodentia: Muridae) by needle challenge.

Journal of medical entomology, 2014
Orientia tsutsugamushi is a pathogen transmitted by Leptotrombidium that causes scrub typhus. To develop an infection mouse model, a mite-derived isolate of O. tsutsugamushi was established from a laboratory-maintained colony of Leptotrombidium chiangraiensis (O. tsutsugamushi Lc-1).
Woradee, Lurchachaiwong, Teik-Chye, Chan, Allen L, Richards, Wesley, McCardle, Anthony L, Schuster   +4 more
openaire   +1 more source

Ornithodoros (Pavlovskyella) verrucosus (Acari: Argasidae) infected to novel spotted fever group rickettsiae (Rickettsiales: Rickettsiaceae) in Iran

Systematic and Applied Acarology, 2021
openaire   +1 more source