Tick-borne Encephalitis Virus in Wild Rodents in Winter, Finland, 2008–2009
Elina Tonteri, Anu E. Jääskeläinen , Tapani Tikkakoski, Liina Voutilainen, Jukka Niemimaa, Heikki Henttonen, Antti Vaheri, and Olli Vapalahti
Author affiliations: Author affiliations: University of Helsinki, Helsinki, Finland (E. Tonteri, A.E. Jääskeläinen, L. Voutilainen, A. Vaheri, O. Vapalahti); Karolinska Institutet, Solna, Sweden (E. Tonteri); Keski-Pohjanmaa Central Hospital, Kokkola, Finland (T. Tikkakoski); Finnish Forest Research Institute, Vantaa, Finland (L. Voutilainen, J. Niemimaa, H. Henttonen); Hospital District of Helsinki and Uusimaa, Helsinki (O. Vapalahti)
Figure 1. Sites at which rodents were trapped during winters of 2008 and 2009, Finland. A) Locations of trapping sites within Finland. B) Kokkola archipelago, where Siberian subtype of tick-borne encephalitis virus is endemic: 1,Trullevi, Kupu Island; 2,Trullevi; 3, Enträskholmen Island; 4, Börskär Island; 5, Norra Hamnskäret Island; 6, Harrbådan. C) Helsinki archipelago, Isosaari, where European subtype of tick-borne encephalitis virus is endemic: 7, Isosaari Island; 8, Harmaja Island. Scale bars indicate 2 km.
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