Molecular Identification of Borrelia miyamotoi in Ixodes ricinus from Portugal

Mónica Nunes, Ricardo Parreira, Nádia Lopes, Carla Maia, Teresa Carreira, Carmelita Sousa, Sofia Faria, Lenea Campino, M. Luísa Vieira

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


Borrelia miyamotoi, a relapsing fever spirochete, has been found recently in Ixodes ricinus ticks; however, little is known about its spatial distribution and potential local impact on human health. A total of 640 ticks (447 nymphs and 193 adults) collected throughout Portugal were analyzed using two nested PCR protocols, one targeting the flagellin gene and the other the internal transcribed space region between the 5S and the 23S rRNA. As a result, B. miyamotoi was detected, for the first time, in one guesting I. ricinus nymph collected in the Lisboa district. In addition, a prevalence of 11% (71/640) for B. burgdorferi sensu lato was obtained. Even though no human relapsing fever cases due to infection by B. miyamotoi have been reported yet in Portugal, surveillance must be improved to provide better insight into the prevalence and distribution of this spirochete in ticks.

Original languageEnglish
Pages (from-to)515-517
Number of pages3
JournalVector-Borne and Zoonotic Diseases
Issue number8
Publication statusPublished - 1 Aug 2015


  • Borrelia miyamotoi
  • Flagellin gene
  • Ixodes ricinus
  • Portugal

UN Sustainable Development Goals (SDGs)

  • SDG 3 - Good Health and Well-Being

Fingerprint Dive into the research topics of 'Molecular Identification of Borrelia miyamotoi in Ixodes ricinus from Portugal'. Together they form a unique fingerprint.

Cite this