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The key roles of selection and migration in the ecology of Lyme borreliosis

Authors
Journal
International Journal of Medical Microbiology
1438-4221
Publisher
Elsevier
Publication Date
Volume
291
Identifiers
DOI: 10.1016/s1438-4221(02)80029-7
Keywords
  • Borrelia Burgdorferisensu Lato
  • Complement System
  • Distinct Transmission Cycles
  • Migration
Disciplines
  • Biology
  • Ecology

Abstract

Abstract The roles of selection and migration of B. burgdorferi s. l. were studied. Questing adult Ixodes ricinus ticks were collected across Europe and analysed for infection with B. burgdorferi s. l. Analysis of the genospecies in individual ticks showed that B. garinii and B. valaisiana segregate from B. afzelii. Segregation of bird- and rodent-associated Borrelia genotypes can be explained by the operation of complement-mediated selection in the midgut of the feeding tick. Phylogenese analyses of B. burgdorferi s. l. indicate high rates of migration for bird-associated genotypes. Altogether, it is emerging that the ecology of Lyme borreliosis is largely host-driven and that selection and migration are major forces shaping the population structures of B. burgdorferi s. l.

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