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Title: Rickettsial infection in animals and brazilian spotted fever endemicity.
Authors: Sangioni, Luis Antônio
Horta, Maurício Cláudio
Vianna, Manoella Campostrini Barreto
Gennari, Solange Maria
Soares, Rodrigo Martins
Galvão, Márcio Antônio Moreira
Schumaker, Teresinha T. S.
Ferreira, Fernando
Vidotto, Odilon
Labruna, Marcelo Bahia
Issue Date: 2005
Citation: SANGIONI, L. A. et al. Rickettsial infection in animals and brazilian spotted fever endemicity. Emerging Infectious Diseases, v. 11, n. 2, p. 265-270, 2005. Disponível em: <>. Acesso em: 03 set. 2014.
Abstract: We compared the rickettsial infection status of Amblyomma cajennense ticks, humans, dogs, and horses in both Brazilian spotted fever (BSF)–endemic and –nonendemic areas in the state of São Paulo, Brazil. Most of the horses and few dogs from BSF-endemic areas had serologic titers against Rickettsia rickettsii antigens. In contrast, no dogs or horses from BSF-nonendemic areas had serologic titers against R. rickettsii antigens, although they were continually exposed to A. cajennense ticks. All human serum samples and ticks from both areas were negative by serologic assay and polymerase chain reaction, respectively. Our results indicate that surveys of horse serum are a useful method of BSF surveillance in areas where humans are exposed to A. cajennense ticks. In addition, we successfully performed experimental infection of A. cajennense ticks with R. parkeri.
ISSN: 1080-6059
metadata.dc.rights.license: Emerging Infectious Diseases is published by the Centers for Disease Control and Prevention, a U.S. Government agency. Therefore, all materials published in Emerging Infectious Diseases are in the public domain and can be used without permission. Fonte: Emerging Infectious Diseases <>. Acesso em: 04 set. 2014.
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