Results 31 to 40 of about 18,854 (223)

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

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

A case of rocky mountain spotted fever without eschar as a cause of pyrexia with multiple organ failure [PDF]

open access: yes, 2017
Rocky mountain spotted fever (RMSF) is a rickettsia disease frequently reported from North America and Europe and transmitted by tick bite. This disease is very rare in India and other parts of South East Asia.
Balakrishnaa, Arjun M.   +4 more
core   +2 more sources

Geospatial Analysis of Rickettsial Species [PDF]

open access: yes, 2019
Rickettsia species are obligate intracellular, arthropod-borne bacteria with a potential to cause multiple diseases including Rocky Mountain spotted fever (RMSF).
Frank, Amy
core   +3 more sources

Tick-Borne Diseases and Pregnancy: A Narrative Review Evaluating Pregnancy Complications Caused by Tick-Borne Diseases

open access: yesTropical Medicine and Infectious Disease
Ticks are vectors of public health concern because the pathogens they transmit can cause detrimental diseases in humans. Lyme disease, tick-borne relapsing fever, human granulocytic anaplasmosis, Rocky Mountain spotted fever, tick-borne encephalitis ...
Michael W. Curtis, Job E. Lopez
doaj   +1 more source

Rickettsia rickettsii Transmission by a Lone Star Tick, North Carolina

open access: yesEmerging Infectious Diseases, 2011
Only indirect or circumstantial evidence has been published to support transmission of Rickettsia rickettsii by Amblyomma americanum (lone star) ticks in North America. This study provides molecular evidence that A.
Edward B. Breitschwerdt   +5 more
doaj   +1 more source

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