摘要: After several years of controversy, the contribution birds in ecology Borrelia burgdorferi sensu lato (sl) has become more and obvious on three continents where pathogens are distributed. Evidence reservoir competence particular bird species been obtained using tick xenodiagnosis. B. sl circulates not only terrestrial environment involving Ixodes ricinus undergrowth-frequenting but also marine I. uriae seabirds. Migrating contribute to spread infected vectors along migration routes.