[Borrelia strains that cause erythema migrans in Alsace, France]

N Antoni-Bach1, B Jaulhac, Y Hansmann

  • 1Service de Dermatologie, Hôpitaux Universitaires de Strasbourg, France.

Abstract

Insights

Borrelia afzelii and Borrelia garinii are the main causes of erythema migrans (EM) in Alsace, France. This study identified these Borrelia species in patients with EM, confirming their role in Lyme borreliosis.

Area of Science:

  • Medical Microbiology
  • Infectious Diseases
  • Epidemiology

Context:

  • Lyme borreliosis is a significant tick-borne illness in Europe.
  • The specific Borrelia species causing erythema migrans (EM) in France were previously unknown.
  • Alsace, France, is a region where Lyme borreliosis is prevalent.

Purpose:

  • To identify the Borrelia species responsible for erythema migrans (EM) in Alsace, France.
  • To determine the prevalence of Borrelia burgdorferi sensu lato group species in French EM lesions.

Summary:

  • Eighteen patients with EM lesions underwent cutaneous biopsies for Borrelia detection.
  • Cultures and PCR analysis identified Borrelia afzelii in 4 patients and Borrelia garinii in 3 patients.
  • Borrelia infection was confirmed in 7 out of 18 patients.

Impact:

  • This study identifies Borrelia afzelii and Borrelia garinii as the predominant species causing EM in Alsace.
  • Findings contribute to understanding the epidemiology of Lyme borreliosis in France.
  • Results support the need for targeted diagnostics and treatment strategies for Lyme borreliosis in the region.

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