Spotted fever group Rickettsia in Amblyomma dubitatum tick from the urban area of Campo Grande, Mato Grosso do Sul, Brazil

Ticks Tick Borne Dis. 2015 Mar;6(2):107-10. doi: 10.1016/j.ttbdis.2014.10.001. Epub 2014 Nov 8.

Abstract

Rickettsia infection of each tick was evaluated by the hemolymph test and polymerase chain reaction (PCR) targeting gltA and ompA genes. All hemolymph tests were negative and PCR of one A. dubitatum detected both Rickettsia genes. Sequence of ompA exhibited a 99% identity with Rickettsia parkeri and R. africae and a 98% identity with R. sibirica. Rickettsia of the spotted fever group in A. dubitatum is described for the first time in an urban area within the municipality of Campo Grande in the state of Mato Grosso do Sul (MS), Brazil. This finding reinforces the importance of more detailed studies to determine the role of A. dubitatum in the transmission of spotted fever agents.

Keywords: Amblyomma dubitatum; Campo Grande; Spotted fever group; Tick; Urban área; Zoonosis.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Arachnid Vectors / classification
  • Arachnid Vectors / microbiology*
  • Base Sequence
  • Brazil / epidemiology
  • Female
  • Geography
  • Humans
  • Ixodidae / classification
  • Ixodidae / microbiology*
  • Male
  • Molecular Sequence Data
  • Phylogeny
  • Rickettsia / genetics
  • Rickettsia / isolation & purification*
  • Rickettsia Infections / microbiology*
  • Rickettsia Infections / transmission
  • Sequence Analysis, DNA
  • Tick-Borne Diseases / microbiology*
  • Tick-Borne Diseases / transmission
  • Urban Health
  • Zoonoses