Results 31 to 40 of about 18,935 (235)

Outbreak of Rocky Mountain spotted fever in Córdoba, Colombia

open access: yesMemorias do Instituto Oswaldo Cruz, 2011
Rocky Mountain spotted fever (RMSF) is a tick-borne disease caused by the obligate intracellular bacterium Rickettsia rickettsii. Although RMSF was first reported in Colombia in 1937, it remains a neglected disease.
Marylin Hidalgo   +7 more
doaj   +1 more source

Rickettsia parkeri in Amblyomma maculatum Ticks, North Carolina, USA, 2009–2010

open access: yesEmerging Infectious Diseases, 2011
We detected Rickettsia parkeri in 20%−33% of Amblyomma maculatum ticks sampled in North Carolina. Results highlight the high frequencies of R. parkeri–infected ticks in the state with the highest annual incidence of Rocky Mountain spotted fever ...
Andrea S. Varela-Stokes   +3 more
doaj   +1 more source

Rickettsia rickettsii infection as an unusual cause of pediatric retinitis: A case report

open access: yesAmerican Journal of Ophthalmology Case Reports, 2022
Purpose: To report a case of infectious pediatric retinitis attributed to Rocky Mountain spotted fever which is rarely reported in the United States.
Spencer M. Moore   +2 more
doaj   +1 more source

Dual Infection with Ehrlichia chaffeensis and a Spotted Fever Group Rickettsia: A Case Report

open access: yesEmerging Infectious Diseases, 1998
Well-documented cases of simultaneous human infection with more than one tick-borne pathogen are rare. To our knowledge only two dual infections have been reported: simultaneous human infection with the agent of human granulocytic ehrlichiosis and ...
Daniel J. Sexton   +12 more
doaj   +1 more source

Molecular pathogenesis of Rocky Mountain spotted fever: a brief review

open access: yesIMC Journal of Medical Science, 2021
Rocky Mountain spotted fever (RMSF) is a bacterial infection caused by Rickettsia, a diverse group of small Gram-negative rod-shaped α-proteobacteria, and obligates intracellular pathogens, which are free-living in hosts' cell cytoplasm and are ...
Peter Uteh Upla   +4 more
doaj   +1 more source

Experimental infection of dogs with a brazilian strain of Rickettsia rickettsii: clinical and laboratory findings [PDF]

open access: yes, 2008
The bacterium Rickettsia rickettsii is the etiological agent of an acute, severe disease called Rocky Mountain spotted fever in the United States or Brazilian spotted fever (BSF) in Brazil.
FACCINI, João Luiz Horácio   +6 more
core   +3 more sources

Rocky Mountain Spotted Fever in Dogs, Brazil

open access: yesEmerging Infectious Diseases, 2009
Clinical illness caused by Rickettsia rickettsii in dogs has been reported solely in the United States. We report 2 natural clinical cases of Rocky Mountain spotted fever in dogs in Brazil. Each case was confirmed by seroconversion and molecular analysis
Marcelo B. Labruna   +4 more
doaj   +1 more source

Feeding Period Required by Amblyomma aureolatum Ticks for Transmission of Rickettsia rickettsii to Vertebrate Hosts

open access: yesEmerging Infectious Diseases, 2014
Rocky Mountain spotted fever is endemic to the São Paulo metropolitan area, Brazil, where the etiologic agent, Rickettsia rickettsii, is transmitted to humans by adult Amblyomma aureolatum ticks.
Danilo G. Saraiva   +3 more
doaj   +1 more source

Rocky Mountain Spotted Fever [PDF]

open access: yesArchives of Internal Medicine, 2003
Rocky Mountain spotted fever is still the most lethal tick-vectored illness in the United States. We examine the dilemmas facing the clinician who is evaluating the patient with possible Rocky Mountain spotted fever, with particular attention to the following 8 pitfalls in diagnosis and treatment: (1) waiting for a petechial rash to develop before ...
Edwin J, Masters   +3 more
openaire   +2 more sources

Rickettsia rickettsii Co-feeding Transmission among Amblyomma aureolatum Ticks

open access: yesEmerging Infectious Diseases, 2018
Amblyomma aureolatum ticks are vectors of Rickettsia rickettsii, the etiologic agent of Rocky Mountain spotted fever in Brazil. Maintenance of R. rickettsii in nature depends on horizontal transmission along tick generations.
Jonas Moraes-Filho   +4 more
doaj   +1 more source

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