Spotted Fever
Mostrando 13-24 de 242 artigos, teses e dissertações.
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13. Comparative growth of spotted fever group Rickettsia spp. strains in Vero cells
In Brazil, the spotted fever group (SFG) Rickettsia rickettsii and Rickettsia parkeri related species are the etiological agents of spotted fever rickettsiosis. However, the SFG, Rickettsia rhipicephali, that infects humans, has never been reported. The study of growth dynamics can be useful for understanding the infective and invasive capacity of these path
Mem. Inst. Oswaldo Cruz. Publicado em: 2016-08
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14. Rhipicephalus sanguineus (ACARI: IXODIDAE) BITING A HUMAN BEING IN PORTO ALEGRE CITY, RIO GRANDE DO SUL, BRAZIL
We report the finding of a female brown dog tick, Rhipicephalus sanguineus (Acari: Ixodidae) on the scalp of a male patient in Porto Alegre, Rio Grande do Sul, Brazil. Human parasitism by this tick is rare and has seldomly been reported in the literature, despite its recognized importance since it can act as a vector of Rickettsia rickettsii, the agent of sp
Rev. Inst. Med. trop. S. Paulo. Publicado em: 08/04/2016
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15. Rickettsia amblyommii infecting Amblyomma sculptum in endemic spotted fever area from southeastern Brazil
The Rickettsia bacteria include the aetiological agents for the human spotted fever (SF) disease. In the present study, a SF groupRickettsia amblyommii related bacterium was detected in a field collected Amblyomma sculptum (Amblyomma cajennense species complex) tick from a Brazilian SF endemic site in southeastern Brazil, in the municipality of Juiz de Fora,
Mem. Inst. Oswaldo Cruz. Publicado em: 11/12/2015
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16. Brazilian Spotted Fever: the importance of dermatological signs for early diagnosis
Brazilian spotted fever is an acute febrile infectious disease caused by Rickettsia rickettsii, transmitted by tick bite. As this disease is rare and has high mortality rates in Brazil, the clinical aspects and epidemiological data may help the diagnosis. We report a case of Brazilian spotted fever in a 19-year-old patient who presented maculopapular exanthe
An. Bras. Dermatol.. Publicado em: 2015-04
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17. Risk factors associated with the transmissionof Brazilian spotted fever in the Piracicaba river basin, State of São Paulo, Brazil
INTRODUCTION : Brazilian spotted fever (BSF) is a disease transmitted by ticks for which the etiological agent is Rickettsia rickettsii. The present essay evaluates the risk factors associated with the transmission of cases of BSF in the time period between 2003 and 2013 in the Piracicaba river basin, state of São Paulo. METHODS : This essay presents a ret
Rev. Soc. Bras. Med. Trop.. Publicado em: 2015-01
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18. Candidatus Rickettsia andeanae, a spotted fever group agent infecting Amblyomma parvum ticks in two Brazilian biomes
Adult ticks of the species Amblyomma parvum were collected from the vegetation in the Pantanal biome (state of Mato Grosso do Sul) and from horses in the Cerrado biome (state of Piauí) in Brazil. The ticks were individually tested for rickettsial infection via polymerase chain reaction (PCR) targeting three rickettsial genes, gltA, ompA and ompB. Overall, 6
Mem. Inst. Oswaldo Cruz. Publicado em: 2014-04
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19. Detecção e caracterização molecular de riquétsias em potenciais vetores procedentes de focos ativos de febre maculosa do Estado do Rio de Janeiro. / Detection and molecular characterization of Rickettsia in potential vectors from active focuses of spotted fever in the State of Rio de Janeiro.
Brazilian spotted fever caused by spotted fever group (SFG) rickettsiae and mainly transmitted by ticks occurs in the southeast, where human deaths are recorded. In the state of Rio de Janeiro, lethality due to rickettsial infection is high, but only recently epidemiological investigations were conducted, and indicated the participation of new species of ect
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/02/2012
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20. A prevalent alpha-proteobacterium Paracoccus sp. in a population of the Cayenne ticks (Amblyomma cajennense) from Rio de Janeiro, Brazil
As Rocky Mountain Spotted Fever is the most common tick-borne disease in South America, the presence of Rickettsia sp. in Amblyomma ticks is a possible indication of its endemicity in certain geographic regions. In the present work, bacterial DNA sequences related to Rickettsia amblyommii genes in A. dubitatum ticks, collected in the Brazilian state of Mato
Genet. Mol. Biol.. Publicado em: 16/10/2012
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21. Rickettsia parkeri: a Rickettsial pathogen transmitted by ticks in endemic areas for spotted fever rickettsiosis in southern Uruguay
At first Rickettsia conorii was implicated as the causative agent of spotted fever in Uruguay diagnosed by serological assays. Later Rickettsia parkeri was detected in human-biting Amblyomma triste ticks using molecular tests. The natural vector of R. conorii, Rhipicephalus sanguineus, has not been studied for the presence of rickettsial organisms in Uruguay
Revista do Instituto de Medicina Tropical de São Paulo. Publicado em: 2012-06
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22. Febre maculosa brasileira no estado de São Paulo : aspectos clínicos e epidemiológicos / Brazilian spotted fever in São Paulo State : Clinical and epidemiological aspects
Causada pela bactéria Rickettsia rickettsii e transmitida pelos carrapatos Amblyomma cajennense e Amblyomma aureolatum, a febre maculosa brasileira (FMB), após décadas de aparente silêncio epidemiológico, desde sua reemergência nos anos 80, vem figurando como importante problema de saúde pública no estado de São Paulo, sobretudo, em decorrência da
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/05/2011
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23. Spotted fever group Rickettsia infecting ticks (Acari: Ixodidae) in the state of Santa Catarina, Brazil
During 2006-2008, a total of 260 adult ticks were collected from domestic and wild animals in different regions of the state of Santa Catarina (SC), Brazil, including areas where human cases of Brazilian spotted fever have been reported. Collected ticks belonging to nine species (Amblyomma aureolatum, Amblyomma cajennense, Amblyomma dubitatum, Amblyomma long
Memórias do Instituto Oswaldo Cruz. Publicado em: 2011-12
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24. Outbreak of Rocky Mountain spotted fever in Córdoba, Colombia
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. Herein, we describe the investigation of a large cluster of cases of spotted fever rickettsiosis in a new area of Colombia.
Memórias do Instituto Oswaldo Cruz. Publicado em: 2011-02