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Antibodies against rickettsiae from spotted fever groups in horses from two mesoregions in the state of Santa Catarina, Brazil Arq. Bras. Med. Vet. Zootec.
Medeiros,A.P.; Moura,A.B.; Souza,A.P.; Bellato,V.; Sartor,A.A.; Vieira-Neto,A.; Moraes-Filho,J.; Labruna,M.B..
Bacteria of the Rickettsia genus are agents of Brazilian Spotted Fever (BSF), a zoonotic disease which is difficult to diagnose, evolves quickly and can result in death. Antibodies against Rickettsia spp. in horses were studied, by means of Indirect Immunofluorescence Assay (IFAT ≥64), in 150 blood samples taken from animals in two Santa Catarina mesoregions (Planalto Serrano and Vale do Itajaí). The overall occurrence of Rickettsia spp. antibodies in horses was 18.66%, with cross-reactivity occurring in all positive samples for at least two of the species tested. Separately, according to the species, 25 (16.66%) samples were positive for R. rickettsii, 15 (10%) for R. parkeri, 22 (14.66%) for R. amblyommii, 23 (15.33%) for R. rhipicephali, 16 (10.66%) for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazilian spotted fever; Rickettsia spp; IFAT; Horses; Santa Catarina.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000600019
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Atypical fulminant Rickettsia rickettsii infection (Brazilian spotted fever) presenting as septic shock and Adult Respiratory Distress Syndrome BJID
Costa,Paulo Sérgio Gonçalves da; Brigatte,Marcos Emilio; Almeida,Edmilton Pereira de; Valle,Lena Márcia de Carvalho.
Brazilian spotted fever, caused by Rickettsia rickettsii, has been increasingly reported in Brazil especially in the southeastern states. The severe and fulminant forms of the disease are not unusual but most of the reported fatal cases have shown some typical clinical clue, which leads the attending physician to a correct diagnosis. We report a probable case of atypical fulminant Brazilian spotted fever that presented full-blown septic shock associated with Adult Respiratory Distress Syndrome (ARDS) and delayed uncharacteristic rash with an over four-fold increase in reciprocal IgM, but not IgG titer against Rickettsia rickettsii. Brazilian practitioners should be aware of the possibility of Brazilian spotted fever as a cause of fulminant primary sepsis...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rickettsia rickettsii; Brazilian spotted fever; Sepsis; ARDS.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702002000200006
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Brazilian spotted fever: a reemergent zoonosis J. Venom. Anim. Toxins incl. Trop. Dis.
Greca,H.; Langoni,H.; Souza,L.C..
Brazilian spotted fever is caused by the bacterium Rickettsia rickettsii, which is the most pathogenic species of the spotted-fever rickettsiae group and is transmitted by the bite of infected ticks. Amblyomma cajennense is the most important tick species involved in the cycle of this zoonosis in Brazil as it presents low host specificity, great number of natural reservoirs and wide geographic distribution. It was first described in the state of São Paulo in 1929 and later in Rio de Janeiro, Minas Gerais and Bahia. The number of cases decreased in the 1940's with the development of new plague control techniques and antibiotics. In the last decades, the number of new cases has increased. The current review aimed at reporting some of the epidemiological and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazilian spotted fever; Rickettsia rickettsii; Amblyomma cajennense.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000100002
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Characterization of rickettsia rickettsii in a case of Fatal Brazilian spotted fever in the city of Rio de Janeiro, Brazil BJID
Lamas,Cristiane; Favacho,Alexsandra; Rozental,Tatiana; Bóia,Márcio N.; Kirsten,Andrei H.; Guterres,Alexandro; Barreira,Jairo; Lemos,Elba Regina S. de.
A lethal case of Brazilian spotted fever (BSF) is presented. Clinical features were initially of gastrointestinal involvement and evolved with progression to septic shock, meningoencephalitis and death on the 6th day of illness. Indirect immunofluorescence assay (IFA) for spotted fever group rickettsia (SFGR) was non-reactive. Diagnosis was confirmed by the polymerase chain reaction (PCR) and the nucleotide sequencing of a fragment of the ompA gene showed 100% homology to Rickettsia rickettsii. BSF has not been reported in the city of Rio de Janeiro in the last three decades, and the present description should alert the clinicians to its presence in urban Rio de Janeiro, and to the differential diagnosis with dengue fever, gastroenteritis, leptospirosis...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazilian spotted fever; Spotted fever group rickettsia; Rickettsia rickettsii; Lethal case; Rio de Janeiro city; Indirect immunofluorescence; Polymerase chain reaction; Central nervous system involvement.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000200010
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Human ehrlichioses in Brazil: first suspect cases BJID
Calic,Simone B.; Galvão,Márcio A.M.; Bacellar,Fátima; Rocha,Christiane M. B. M.; Mafra,Cláudio L.; Leite,Romário C.; Walker,David H..
Brazilian spotted fever (BSF) rickettsiosis is the most common and recognized of the human rickettsioses in Brazil. It is difficult to establish the diagnosis of human rickettsiosis infection by routine microbiologic methods, creating a false idea that Rickettsia and Ehrlichia infections are rare and without importance. New tick-borne diseases, like Human Granulocytic Anaplasmosis (HGA) and Human Monocytic Ehrlichiosis (HME), have been described in many countries. These diseases can present symptoms similar to rickettsioses of the spotted fever group, and they are transmitted by ixodid ticks. The first two suspected cases of human ehrlichiosis in Brazil were first considered to be cases of BSF. The differential diagnosis was made at the Minas Gerais...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rickettsioses; Human ehrlichioses; Brazilian spotted fever; Brazil.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702004000300011
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New records of tick-associated spotted fever group Rickettsia in an Amazon-Savannah ecotone, Brazil. Repositório Alice
AGUIRREA, A. A. R. e; GARCIA, M. V.; COSTA, I. N. da; CSORDAS, B. G.; RODRIGUES, V. da S.; MEDEIROS, J. F.; ANDREOTTI, R..
Human rickettsiosis has been recorded in the Amazon Biome. However, the epidemiological cycle of causative rickettsiae has not been fully accounted for in the Amazon region. This study investigates the presence of spotted fever group (SFG) Rickettsia spp. in free-living unfed ticks of the Amblyomma genus. The study was conducted in seven municipalities in Rondonia State, Brazil, where the main biomes are Amazon forest, Brazilian Savannah and their ecotones (areas of ecological tension between open ombrophilous forest and savannah). The following tick species were collected: Amblyomma cajennense (sensu lato) s.l., A. cajennense (sensu stricto) s.s., A. coelebs, A. naponense, A. oblongoguttatum, A. romitii, A. scalpturatum and A. sculptum. A total of 167...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Amazon-Savanna ecotone; Amblyomma oblongoguttatum; Rickettsia amblyommatis; Brazilian spotted fever; Ecotones.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1101870
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