Results 1 to 10 of about 74,303 (276)

Evasion of autophagy mediated by Rickettsia surface protein OmpB is critical for virulence [PDF]

Nature Microbiology, 2019
Rickettsia are obligate intracellular bacteria that evade antimicrobial autophagy in the host cell cytosol by unknown mechanisms. Other cytosolic pathogens block different steps of autophagy targeting, including the initial step of polyubiquitin-coat ...
Patrik Engström, Thomas P Burke, Gabriel Mitchell   +2 more
exaly   +4 more sources

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   +2 more sources

The host calcium system contributes to intracellular Rickettsia pathogenesis [PDF]

Infection and Immunity
Bacteria in the genus Rickettsia are obligate intracellular parasites of the eukaryotic cytoplasm. Pathogenic Rickettsia species are exquisitely evolved to only proliferate within eukaryotic host cells, particularly within endothelial cells of the ...
Jinyi C. Zhu, Jack H. Cook, Mustapha Dahmani, Sean P. Riley   +3 more
doaj   +2 more sources

A Concise Review of the Epidemiology and Diagnostics of Rickettsioses: Rickettsia and Orientia spp

Journal of Clinical Microbiology, 2018
Rickettsioses are globally distributed and caused by the family Rickettsiaceae, which comprise a diverse and expanding list of organisms. These include two genera, Rickettsia and Orientia. ABSTRACT Rickettsioses are globally distributed and caused by the
Mohammad Y Abdad, Pierre E Fournier, John Stenos   +2 more
exaly   +2 more sources

A review of the genus Rickettsia in Central America

Research and Reports in Tropical Medicine, 2018
Sergio E Bermúdez C,1 Adriana Troyo2 1Department of Medical Entomology, Gorgas Memorial Institute for Health Research, Panamá; 2Vector Research Laboratory, Tropical Diseases Research Center, Faculty of Microbiology, University of Costa Rica,
Bermúdez C SE, Troyo A
doaj   +2 more sources

Rickettsia felis, an Emerging Flea-Borne Rickettsiosis

Current Tropical Medicine Reports, 2016
Rickettsia felis is an emerging insect-borne rickettsial pathogen and the causative agent of flea-borne spotted fever. First described as a human pathogen from the USA in 1991, R. felis is now identified throughout the world and considered a common cause
Kevin R Macaluso
exaly   +2 more sources

Rickettsia sp. DNA recovered from a febrile patient from Papua, Indonesia [PDF]

IDCases
Background: Rickettsia are neglected, arthropod-borne bacteria causing febrile illness of varying severity. Indonesia is endemic for several Rickettsia species, predominantly from murine and scrub typhus groups. Objective: We described here a potentially
Edison Johar, Ida Yus Sriyani, Yora Permata Dewi, Agatha Mia Puspitasari, Fahira Ainun Nisa, Ristya Amalia, Pinkan Pertiwi Kariodimedjo, Jeanne Rini Poespoprodjo, Enny Kenangalem, Frilasita Aisyah Yudhaputri, Leily Trianty, Jeremy P. Ledermann, Khin Saw Aye Myint, Eric C. Mossel, Ann M. Powers, Rintis Noviyanti   +15 more
doaj   +2 more sources

Diagnostic Value of IgA Antibody Measurement in Tick-Borne Spotted Fever (Astrakhan Rickettsial Fever)

Microbiology Spectrum, 2022
Tick-borne spotted fevers caused by Rickettsia occur worldwide. The symptoms of this bacterial infection are similar to those of viral infection, and thus, diagnostic accuracy has special clinical importance.
Nina S. Smirnova, Alexey V. Kostarnoy, Alexey V. Kondratev, Petya G. Gancheva, Daniil A. Grumov, Alexander L. Gintsburg   +5 more
doaj   +1 more source

Rickettsia amblyommatis in Ticks: A Review of Distribution, Pathogenicity, and Diversity

Microorganisms, 2023
Rickettsia amblyommatis is a potentially pathogenic species of Rickettsia within the spotted fever group vectored by ticks. While many studies have been published on this species, there is debate over its pathogenicity and the inhibitory role it plays in
J. Lambert, Leona Gilbert, E. A. Richardson, R. Roe, C. Apperson, L. Ponnusamy   +5 more
semanticscholar   +1 more source

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 ...
K. El Karkouri, E. Ghigo, D. Raoult, P. Fournier   +3 more
semanticscholar   +1 more source