Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/33925
Title: Rickettsiae-infected Ticks in an Endemic Area of Spotted Fever in the State of Minas Gerais, Brazil
Authors: Lemos, Elba Regina Sampaio de
Machado, Raimundo Diogo
Pires, Fernando Dias de Ávila
Machado, Sérgio Lisboa
Costa, Lígia Maria Cantarino da
Coura, José Rodrigues
Affilliation: Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Medicina Tropical. Rio de Janeiro, RJ. Brasil.
Universidade Federal do Rio de Janeiro. Instituto de Microbiologia. Departamento de Virologia. Rio de Janeiro, RJ, Brasil.
Universidade Federal do Rio de Janeiro. Instituto de Microbiologia. Departamento de Virologia. Rio de Janeiro, RJ, Brasil.
Universidade Federal do Rio de Janeiro. Instituto de Microbiologia. Departamento de Virologia. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Medicina Tropical. Rio de Janeiro, RJ. Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Medicina Tropical. Rio de Janeiro, RJ. Brasil.
Abstract: A study on tick-borne rickettsiosis was developed in the county of Santa Cruz do Escalvado, State of Minas Gerais, Brazil, where a clinical case of the disease, confirmed by necropsy, had been reported. Of the 1,254 ticks collected, 1,061 belonged to the Amblyomma genus, 57 to the Rhipicephalus sanguineus species, 81 to Boophilus microplus, and 46 to Anocentor nitens. The hemolymph test associated with Giménez staining showed that 18 of the 221 A. cajennense specimens, 1 of the 16 R. sanguineus, 1 of the 22 B. microplus, 3 of the A. nitens, and 1 of the A. ovale contained rickettsia-like microorganisms. Only 3 A. cajennense ticks were positive under direct immunofluorescence. A. cajennense was the only species found on humans.
Keywords: Spotted fever
Ticks
Hemolymph test
Brazil
keywords: Febre maculosa
Carrapatos
Teste de hemolinfa
Brasil
Minas Gerais
Issue Date: 1997
Publisher: Fundação Oswaldo Cruz. Instituto Oswaldo Cruz
Citation: LEMOS, Elba Regina Sampaio de et al. Rickettsiae-infected Ticks in an Endemic Area of Spotted Fever in the State of Minas Gerais, Brazil. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 92, n. 4, p. 477-481, July/Aug. 1997.
DOI: 10.1590/S0074-02761997000400005
ISSN: 0074-0276
Copyright: open access
Appears in Collections:IOC - Artigos de Periódicos

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