Features of Brazilian spotted fever in two different endemic areas in Brazil |
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| Authors: | Rodrigo N. Angerami Milena Câmara Márcia R. Pacola Regina C.M. Rezende Raquel M.R. Duarte Elvira M.M. Nascimento Silvia Colombo Fabiana C.P. Santos Ruth M. Leite Gizelda Katz Luiz J. Silva |
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| Affiliation: | 1. Centro de Parasitologia Veterinária, Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Goiânia, Goiás, Brazil;2. Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil;3. Universidade Brasil, Descalvado, São Paulo, Brazil;4. Veterinarian, Specialist in General and Autonomic Pharmacology, Ribeirão Preto, São Paulo, Brazil;5. Departamento de Biociências e Tecnologia, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil |
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| Abstract: | Brazilian spotted fever (BSF) caused by Rickettsia rickettsii is the most important rickettsiosis and the only reportable tick-borne disease in Brazil. In Brazil, the hard tick Amblyomma cajennense is the most important BSF vector; however, in São Paulo State, A. aureolatum was also recognized as a vector species in remaining Atlantic forest areas near the metropolitan area of São Paulo city. We analyzed clinical and epidemiological features of BSF cases from two distinct areas where A. cajennense (Area 1) and A. aureolatum (Area 2) are the incriminated vectors. The clinical features demonstrate the same severity pattern of BSF in both endemic areas. Differences in seasonality, patient characteristics (median age and gender), and epidemiological risk factors (animals host contact and vegetation characteristics) were observed and possibly could be attributed to the characteristics of each vector and their typical biological cycle (hosts and environment). |
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