Results 11 to 20 of about 46,726 (278)

Pathogenicity and virulence of Rickettsia

open access: yesVirulence, 2022
Rickettsiae include diverse Gram-negative microbial species that exhibit obligatory intracellular lifecycles between mammalian hosts and arthropod vectors.
Luke Helminiak   +2 more
semanticscholar   +1 more source

Rickettsia Infection Benefits Its Whitefly Hosts by Manipulating Their Nutrition and Defense

open access: yesInsects, 2022
Simple Summary Rickettsia is a maternally transmitted endosymbiotic bacterium that infects most insect species. In the current study, we investigated the biological and physiological effects of Rickettsia infection on whitefly, Bemisia tabaci.
Ze-Yun Fan   +8 more
semanticscholar   +1 more source

Bactericidal Activity of Octenidine to Various Genospecies of Borrelia burgdorferi, Sensu Lato Spirochetes in Vitro and in Vivo [PDF]

open access: yesPolish Journal of Microbiology, 2017
The aim of our studies was to invent a reliable method for detection of the bactericidal activity of disinfectants against Borrelia burgdorferi in suspension (in vitro) and in cell line cultures (in vivo). In the suspension method, 0.01% octenidine at 20&
Stanisława Tylewska-Wierzbanowska   +3 more
doaj   +1 more source

A Case of Illness Following a Bite by a Male Lone Star Tick (<i>Amblyomma americanum</i> Linnaeus) Infected With <i>Ehrlichia</i> sp. and <i>Rickettsia amblyommatis</i> in Connecticut, United States. [PDF]

open access: yesClin Case Rep
A case of local lymphadenopathy and a flu‐like illness in a man, following a bite by a male lone star tick infected with Ehrlichia sp. and Rickettsia amblyommatis. ABSTRACT The lone star tick (Amblyomma americanum Linnaeus) is a species commonly found in the southeastern U.S., but in recent years its populations have expanded northward, resulting in an
Khalil N   +4 more
europepmc   +2 more sources

An Update on the Laboratory Diagnosis of Rickettsia spp. Infection

open access: yesPathogens, 2021
Rickettsia species causing human illness are present globally and can cause significant disease. Diagnosis and identification of this intracellular bacteria are challenging with many available diagnostic modalities suffering from several shortcomings ...
Adam G. Stewart, Alexandra G A Stewart
semanticscholar   +1 more source

Tick-Borne Rickettsioses in the Iberian Peninsula

open access: yesPathogens, 2022
Tick-borne rickettsioses (TBR) are caused by obligate, intracellular bacteria of the spotted-fever group (SFG) of the genus Rickettsia (Order Rickettsiales), transmitted by hard ticks.
Leonardo Moerbeck   +2 more
doaj   +1 more source

Assessment of the Pathogenicity of Rickettsia amblyommatis, Rickettsia bellii, and Rickettsia montanensis in a Guinea Pig Model.

open access: yesVector Borne and Zoonotic Diseases, 2021
Members of the genus Rickettsia range from nonpathogenic endosymbionts to virulent pathogens such as Rickettsia rickettsii, the causative agent of Rocky Mountain spotted fever. Many rickettsiae are considered nonpathogenic because they have been isolated
Alyssa N. Snellgrove   +3 more
semanticscholar   +1 more source

A patatin-like phospholipase mediates Rickettsia parkeri escape from host membranes

open access: yesNature Communications, 2021
Rickettsia species of the spotted fever group are arthropod-borne obligate intracellular bacteria that can cause mild to severe human disease. These bacteria invade host cells, replicate in the cell cytosol, and spread from cell to cell.
G. Borgo   +5 more
semanticscholar   +1 more source

‘Rickettsia hulinii’ belongs to the Rickettsia heilongjiangensis species [PDF]

open access: yesClinical Microbiology and Infection, 2009
A Rickettsia species has long been defined as a distinct serotype using mouse serotyping. However, owing to a lack of reproducibility and interlaboratory comparability of this method, new taxonomic guidelines, based on multigene amplification and sequencing, have been developed and validated by an international panel of rickettsiology experts [1]. This
Zhang, L.   +2 more
openaire   +4 more sources

Ixodes pacificus ticks maintain embryogenesis and egg hatching after antibiotic treatment of Rickettsia endosymbiont. [PDF]

open access: yesPLoS ONE, 2014
Rickettsia is a genus of intracellular bacteria that causes a variety of diseases in humans and other mammals and associates with a diverse group of arthropods.
Andre H Kurlovs   +3 more
doaj   +1 more source

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