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  • Publication
    Accès libre
    Diversity within Borrelia burgdorferi sensu lato genospecies in Switzerland by recA gene sequence
    (2004)
    Casati, Simona
    ;
    Bernasconi, Marco V.
    ;
    ;
    Piffaretti, Jean-Claude
    A total of 874 Ixodes ricinus ticks were collected in Switzerland to investigate the genetic diversity of the Borrelia population. We integrated to the RT-PCR method the DNA sequence analysis of a 162-bp fragment of the recA gene. Five genospecies were detected: Borrelia afzelii, Borrelia burgdorferi s.s., Borrelia garinii, Borrelia valaisiana, and Borrelia lusitaniae. A heterogeneous distribution was observed within the B. burgdorferi s.l. genospecies. The most prevalent and diverse genospecies found in Switzerland was Borrelia afzelii, which might suggest a rapid evolution of this genospecies.