Rickettsia parkeri rickettsiosis is recognized as the second most prevalent tick-borne
disease caused by spotted fever group rickettsiae in the Americas, where two pathogenic …

Two well characterized tick-borne rickettsioses occur in Brazil. Rickettsia rickettsii caused
spotted-fever, transmitted by Amblyomma sculptum and Amblyomma aureolatum, is a …

The bacterium Rickettsia parkeri has been reported to infect ticks of the “Amblyomma
maculatum species complex” in the New World, where it causes spotted fever illness in …

Abstract Background Rickettsia parkeri strain Atlantic rainforest has emerged in Brazil during
the last 10 years, with three laboratory-confirmed human cases. While these cases were …

We report Rickettsia species from 2,334 ticks collected from environment (1,939 ticks) and
animals (395 ticks) in the largest inland fragment of the Atlantic rainforest of southern Brazil …

Introdução: A febre maculosa (FM) é uma doença infecciosa, aguda, transmitida por
carrapatos, e de gravidade variável. No Brasil, recentemente, tem sido descrita uma nova …

Abstract Rio Grande do Sul is the southernmost state of Brazil, bordering Uruguay. Clinical
cases of spotted fever group (SFG) rickettsiosis were recently reported in Rio Grande do Sul …

Brazilian spotted fever (BSF) is the deadliest rickettsiosis in the world. Although the
epidemiology of the disease has been established in Brazil, there are still limited data …

Summary In Brazil, two pathogenic Rickettsia species have been identified causing tick‐
borne spotted fever (SF). The aetiological agent Rickettsia rickettsii causes serious illness …

The present study was performed in a non-endemic area for spotted fever (SF) in Imperatriz
microregion, state of Maranhão, Brazil. Blood samples and ectoparasites were collected …