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Volume 15, Number 1—January 2009
Dispatch

Predicting High Risk for Human Hantavirus Infections, Sweden

Gert E. OlssonComments to Author , Marika Hjertqvist, Åke Lundkvist, and Birger Hörnfeldt
Author affiliations: Swedish Institute for Infectious Disease Control, Solna, Sweden (G.E. Olsson M. Hjertqvist, Å. Lundkvist); Swedish University of Agricultural Sciences, Umeå, Sweden (G.E. Olsson); Swedish Defence Research Agency, Umeå (G.E. Olsson); Karolinska Institutet, Stockholm, Sweden (Å. Lundkvist); Umeå University, Umeå (B. Hörnfeldt)

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Figure 1

Human cases of hemorrhagic fever with renal syndrome (HFRS) by 12-month periods from July 1 through June 30 (black line), starting July 1989, when HFRS became reportable in Sweden, and ending June 2008. Bank vole trapping index in fall (white bars) and spring (gray bars) are shown from fall 1971 through 2007. Bar for fall 2007 represents predicted (7) trapping index. Bar on far right represents subsequently obtained actual trapping index.

Figure 1. Human cases of hemorrhagic fever with renal syndrome (HFRS) by 12-month periods from July 1 through June 30 (black line), starting July 1989, when HFRS became reportable in Sweden, and ending June 2008. Bank vole trapping index in fall (white bars) and spring (gray bars) are shown from fall 1971 through 2007. Bar for fall 2007 represents predicted (7) trapping index. Bar on far right represents subsequently obtained actual trapping index.

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