• Publications
  • Influence
Update on Tick-Borne Rickettsioses around the World: a Geographic Approach
SUMMARY Tick-borne rickettsioses are caused by obligate intracellular bacteria belonging to the spotted fever group of the genus Rickettsia. These zoonoses are among the oldest known vector-borneExpand
  • 677
  • 73
Ecology of Rickettsia in South America
  • M. Labruna
  • Biology, Medicine
  • Annals of the New York Academy of Sciences
  • 1 May 2009
Until the year 2000, only three Rickettsia species were known in South America: (i) Rickettsia rickettsii, transmitted by the ticks Amblyomma cajennense, and Amblyomma aureolatum, reported inExpand
  • 287
  • 20
Genetic analysis of ticks belonging to the Rhipicephalus sanguineus group in Latin America.
Phylogenetic analyses based on mitochondrial 16S rDNA sequences were generated from Rhipicephalus sanguineus group specimens collected in 29 localities among 9 Latin-American countries, plus ticksExpand
  • 129
  • 19
Rickettsia Species Infecting Amblyomma cooperi Ticks from an Area in the State of São Paulo, Brazil, Where Brazilian Spotted Fever Is Endemic
ABSTRACT Owing to the potential role of the tick Amblyomma cooperi in the enzootic cycle of Rickettsia rickettsii, the etiologic agent of Brazilian spotted fever (BSF), this study evaluated infectionExpand
  • 454
  • 18
Ticks (Ixodidae) on humans in South America
Twenty eight species of Ixodidae have been found on man in South America (21 Amblyomma, 1 Boophilus, 2 Dermacentor, 2 Haemaphysalis, 1 Ixodes and 1 Rhipicephalus species). Most of them are rarelyExpand
  • 275
  • 18
Reassessment of the taxonomic status of Amblyomma cajennense () with the description of three new species, Amblyomma tonelliae n. sp., Amblyomma interandinum n. sp. and Amblyomma patinoi n. sp., and
A reassessment of the taxonomic status of Amblyomma cajennense based on the morphological analyses of ticks from the whole distribution area of the species resulted in the redescription of A.Expand
  • 211
  • 17
Rickettsia bellii and Rickettsia amblyommii in Amblyomma Ticks from the State of Rondônia, Western Amazon, Brazil
Abstract This study evaluates the rickettsial presence in Amblyomma ticks from eight areas of the Amazon forest in Rondônia, Brazil. The following tick species (number in parentheses) were examined:Expand
  • 223
  • 16
Ticks (Acari: Ixodida) on wild carnivores in Brazil
The present study reports field data of ticks infesting wild carnivores captured from July 1998 to September 2004 in Brazil. Additional data were obtained from one tick collection and from previousExpand
  • 143
  • 10
  • PDF
Rickettsia parkeri in Brazil
We report finding Rickettsia parkeri in Brazil in 9.7% of Amblyomma triste ticks examined. An R. parkeri isolate was successfully established in Vero cell culture. Molecular characterization of theExpand
  • 132
  • 10
  • PDF
Allopatric speciation in ticks: genetic and reproductive divergence between geographic strains of Rhipicephalus (Boophilus) microplus
BackgroundThe cattle tick, Rhipicephalus (Boophilus) microplus, economically impact cattle industry in tropical and subtropical regions of the world. The morphological and genetic differences amongExpand
  • 79
  • 10