Features of Brazilian spotted fever in two different endemic areas in Brazil

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• 作者：Rodrigo N. Angerami^a ; ^{rodrigo.angerami@gmail.com} ; Milena Câ ; mara^b ; Má ; rcia R. Pacola^c ; Regina C.M. Rezende^c ; Raquel M.R. Duarte^c ; Elvira M.M. Nascimento^d ; Silvia Colombo^d ; Fabiana C.P. Santos^d ; Ruth M. Leite^e ; Gizelda Katz^d ; Luiz J. Silva^f
• 关键词：Rickettsia rickettsii ; Brazilian spotted fever ; Amblyomma cajennense ; Amblyomma aureolatum
• 刊名：Ticks and Tick-borne Diseases
• 出版年：2012
• 出版时间：December, 2012
• 年：2012
• 卷：3
• 期：5-6
• 页码：346-348
• 全文大小：169 K

文摘

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 S?o Paulo State, A. aureolatum was also recognized as a vector species in remaining Atlantic forest areas near the metropolitan area of S?o 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).