Results 31 to 40 of about 5,340 (173)

Spotted Fever Group Rickettsiae in Ticks, Morocco

open access: yesEmerging Infectious Diseases, 2008
A total of 370 ticks, encompassing 7 species from 4 genera, were collected during 2002-2006 from domestic animals and vegetation in the Taza region of northeastern Morocco. Rickettsial DNA was identified in 101 ticks (27%) by sequencing PCR products of fragments of the citrate synthase and outer membrane protein genes of Rickettsia spp.
Mhammed Sarih   +5 more
openaire   +3 more sources

Amblyomma maculatum Feeding Augments Rickettsia parkeri Infection in a Rhesus Macaque Model: A Pilot Study. [PDF]

open access: yesPLoS ONE, 2015
Rickettsia parkeri is an emerging eschar-causing human pathogen in the spotted fever group of Rickettsia and is transmitted by the Gulf coast tick, Amblyomma maculatum.
Kaikhushroo H Banajee   +5 more
doaj   +1 more source

Regulator of Actin-Based Motility (RoaM) Downregulates Actin Tail Formation by Rickettsia rickettsii and Is Negatively Selected in Mammalian Cell Culture

open access: yesmBio, 2022
The etiological agent of Rocky Mountain spotted fever, Rickettsia rickettsii, is an obligately intracellular pathogen that induces the polymerization of actin filaments to propel the bacterium through the cytoplasm and spread to new host cells.
Adam M. Nock   +2 more
doaj   +1 more source

Adherence to and Invasion of Host Cells by Spotted Fever Group Rickettsia Species

open access: yesFrontiers in Cellular and Infection Microbiology, 2010
The pathogenic lifecycle of obligate intracellular bacteria presents a superb opportunity to develop understanding of the interaction between the bacteria and host under the pretext that disruption of these processes will likely lead to death of the ...
Yvonne Gar-Yun Chan   +2 more
doaj   +1 more source

A rickettsia infection from Saudi Arabia

open access: yesInternational Journal of Infectious Diseases, 2020
We here present a young patient who developed fever, headache, maculopapular skin rash and an eschar 3 days following a tick bite. Serology for Rickettsia was consistent with acute spotted fever group (SFG) infection.
Fatehi E. Elzein   +4 more
doaj   +1 more source

Susceptibility of inbred mice to rickettsiae of the spotted fever group [PDF]

open access: yesInfection and Immunity, 1984
A mouse strain susceptible to lethal infection with Rickettsia conorii was required for testing vaccine efficacy and for studying the immunology and pathogenesis of infection. Among 20 strains of inbred mice inoculated intraperitoneally with the Malish strain of R.
Eisemann, C S   +2 more
openaire   +2 more sources

Detection of Brazilian spotted fever infection by polymerase chain reaction in a patient from the state of São Paulo

open access: yesMemorias do Instituto Oswaldo Cruz, 2005
Brazilian spotted fever (BSF) cases have been increasing in the state of São Paulo but no genomic information about local rickettsia isolated from humans has been well documented.
Elvira Maria Mendes Nascimento   +5 more
doaj   +1 more source

Note: Rickettsia slovaca sp. nov., a member of the spotted fever group rickettsiae [PDF]

open access: yesInternational Journal of Systematic Bacteriology, 1998
The name Rickettsia slovaca sp. nov. (type strain is strain B) is proposed for a member of the spotted fever group (SFG) rickettsiae which was isolated from Dermacentor marginatus ticks in Slovakia in 1968, and was recently implicated in human febrile illness.
Z, Sekeyová   +4 more
openaire   +2 more sources

NOTES: Rickettsia massiliae sp. nov., a New Spotted Fever Group Rickettsia [PDF]

open access: yesInternational Journal of Systematic Bacteriology, 1993
We propose the name Rickettsia massiliae sp. nov. (type strain, Mtu1 in the Collection of the World Health Organization Collaborative Center for Rickettsial Reference, Marseille, France) for a spotted fever group rickettsia determined to be distinct from previously recognized species by the serotyping method (L. Beati, J.-P. Finidori, B.
L, Beati, D, Raoult
openaire   +2 more sources

Novel Spotted Fever Group Rickettsiosis, Brazil

open access: yesEmerging Infectious Diseases, 2010
We report a clinical case of spotted fever group rickettsiosis acquired in São Paulo, Brazil. Definitive diagnosis was supported by seroconversion between acute-phase and convalescent-phase serum samples.
Mariana G. Spolidorio   +5 more
doaj   +1 more source

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