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Case Reports
. 2010 Mar;16(3):521-3.
doi: 10.3201/eid1603.091338.

Novel spotted fever group rickettsiosis, Brazil

Mariana G Spolidorio  1 , Marcelo B Labruna, Elenice Mantovani, Paulo E Brandao, Leonardo J Richtzenhain, Natalino H Yoshinari
Affiliations
Case Reports

Novel spotted fever group rickettsiosis, Brazil

Mariana G Spolidorio et al. Emerg Infect Dis. 2010 Mar.

Abstract

We report a clinical case of spotted fever group rickettsiosis acquired in Sao Paulo, Brazil. Definitive diagnosis was supported by seroconversion between acute-phase and convalescent-phase serum samples. Molecular analysis of skin samples indicated the agent was a novel spotted fever group strain closely related to Rickettsia africae, R. parkeri, and R. sibirica.

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Figures

Figure 1
Figure 1
Inoculation eschar on the lumbar region of the back of a patient infected with a Rickettsia sp. from the Atlantic rainforest in the state of São Paulo, southeastern Brazil.
Figure 2
Figure 2
Molecular phylogenetic analysis of Rickettsia sp. strain Atlantic rainforest detected in a patient from the State of São Paulo, Brazil. A) A total of 740 unambiguously aligned nucleotide sites of the rickettsial outer membrane protein (ompB) gene were subjected to analysis. B) A total of 463 unambiguously aligned nucleotide sites of the rickettsial ompA gene were subjected to analysis. Bootstrap values >50% are shown at the nodes. Numbers in brackets are GenBank accession numbers. The strain isolated in this study is indicated in boldface. Scale bars indicate nucleotide substitutions per site.
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