Volume 9, Number 11—November 2003
Research
Human Hantavirus Infections, Sweden
Figure 3

Figure 3. Correlation between incidence on reported nephropathia epidemica cases in respective counties within the northern region in autumn (October–December) and autumn (late September) bank vole–trapping indices in Västerbotten during 1991 to 2001 (data presented nontransformed, before statistical analyses).