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First report of Borrelia miyamotoi in an Ixodes ricinus tick in Augsburg, Germany

Sharon Page1, Christina Daschkin2, Sirli Anniko2

  • 1BCA-Research, BCA-Clinic, Morellstraße 33, 86159, Augsburg, Germany. forschung@bca-lab.de.

Experimental & Applied Acarology
|February 1, 2018
PubMed

Insights

Borrelia miyamotoi, a relapsing fever agent, was detected in a tick in Augsburg, Germany. This finding highlights the need to consider tick-borne relapsing fever in unexplained fevers and neurological symptoms.

Area of Science:

  • Medical Entomology
  • Bacteriology
  • Infectious Diseases

Background:

  • Borrelia miyamotoi is a spirochete transmitted by Ixodes ticks, potentially causing relapsing fever and neurological symptoms.
  • Previous reports indicate a low incidence of Borrelia miyamotoi in southern Germany.

Purpose of the Study:

  • To investigate the presence of Borrelia species, including Borrelia miyamotoi, in ticks from the Augsburg region, Germany.
  • To assess the potential for Borrelia miyamotoi as a cause of unexplained febrile and neurological illnesses.

Main Methods:

  • Ticks collected from the Augsburg region underwent quantitative PCR (qPCR) for Borrelia spp.
  • Positive samples were further analyzed using nested PCR and DNA sequencing for species identification.

Main Results:

  • Of 112 ticks, 20 tested positive for Borrelia.
  • Sequencing identified Borrelia afzelli (50%), Borrelia garinii (15%), Borrelia valaisiana (5%), and one instance of Borrelia miyamotoi.
  • The identification of Borrelia miyamotoi was confirmed and not attributed to contamination.

Conclusions:

  • Borrelia miyamotoi has been identified for the first time in ticks from the Augsburg region.
  • Medical professionals should consider tick-borne relapsing fever and conduct differential Borrelia testing for patients with unexplained recurring fever or neurological symptoms.
Keywords:
AugsburgBorrelia miyamotoiBorrelia spp.Ixodes ricinusRelapsing feverTick

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