Rocky Mountain spotted fever in an endemic area in Minas Gerais, Brazil

Memórias do Instituto Oswaldo Cruz

Elba Regina Sampaio De Lemos²  Raimundo Diogo Machado¹  José Rodrigues Coura² 

[1] ,Instituto Oswaldo Cruz Departamento de Medicina Tropical Rio de Janeiro,Brasil

关键词: spotted fever;    Brazil;    humans;    dogs;   

DOI  :  10.1590/S0074-02761994000400001

来源: SciELO

【 摘 要 】

Only one species of spotted fever-group rickettsiae that is pathogenic for humans has been isolated in Brazil, where few physicians are familiar with this disease. In order to obtain information on tick-borne rickettsiosis, a study was performed in the County of Santa Cruz do Escalvado, State of Minas Gerais, Brazil, where a fatal clinical case confirmed by specific immunofluorescence had been reported. Serum samples obtained from 679 humans and 96 dogs were tested by indirect immunofluorescence for detectable antibodies to spotted fever-group rickettsiae, the criterion for a positive result being a titer > or = 1:64. Seropositivity was detected in 7.14 of the humans sera examined and 13.68 of the dogs. We discuss the significance of these findings and formulate some questions, emphasizing the need for further investigation.

【 授权许可】

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