title: Migrating birds and tickborne encephalitis virus.
abstract: During spring and autumn 2001, we screened 13,260 migrating birds at Ottenby Bird Observatory, Sweden, and found 3.4% were infested with ticks. Four birds, each a different passerine species, carried tickborne encephalitis virus (TBEV)-infected ticks (Ixodes ricinus). Migrating birds may play a role in the geographic dispersal of TBEV-infected ticks.
authors.affiliation: Section for Zoonotic Ecology and Epidemiology, Kalmar University, Kalmar, Sweden. jonas.waldenstrom@hik.se
authors.forename: Jonas
authors.initials: J
authors.lastname: Waldenström
authors.forename: Ake
authors.initials: A
authors.lastname: Lundkvist
authors.forename: Kerstin I
authors.initials: KI
authors.lastname: Falk
authors.forename: Ulf
authors.initials: U
authors.lastname: Garpmo
authors.forename: Sven
authors.initials: S
authors.lastname: Bergström
authors.forename: Gunnel
authors.initials: G
authors.lastname: Lindegren
authors.forename: Anders
authors.initials: A
authors.lastname: Sjöstedt
authors.forename: Hans
authors.initials: H
authors.lastname: Mejlon
authors.forename: Thord
authors.initials: T
authors.lastname: Fransson
authors.forename: Paul D
authors.initials: PD
authors.lastname: Haemig
authors.forename: Björn
authors.initials: B
authors.lastname: Olsen
mesh_terms: D025041:Animal Migration; D000818:Animals; D001096:Arachnid Vectors / Q000821:virology*; D001715:Bird Diseases / Q000453:epidemiology / Q000469:parasitology / Q000635:transmission / Q000821:virology*; D001717:Birds; D004669:Encephalitis Viruses, Tick-Borne / Q000302:isolation & purification*; D004675:Encephalitis, Tick-Borne / Q000453:epidemiology / Q000635:transmission / Q000662:veterinary* / Q000821:virology; D018884:Ixodes / Q000821:virology*; D013548:Sweden / Q000453:epidemiology; D015047:Zoonoses / Q000635:transmission / Q000821:virology