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Volume 9, Number 11—November 2003
Research

Human Hantavirus Infections, Sweden

Gert E. Olsson*†Comments to Author , Fredrik Dalerum*1, Birger Hörnfeldt†, Fredrik Elgh†, Thomas R. Palo*2, Per Juto†, and Clas Ahlm†
Author affiliations: *Swedish University of Agricultural Sciences, Umeå, Sweden; †Umeå University, Umeå, Sweden; 1Present address: Stockholm University, Stockholm, Sweden.; 2Present address: Mid Sweden University, Sundsvall, Sweden.

Main Article

Figure 1

Indexed relative distribution of nephropathia epidemica (NE) cases during 1991 to 1998, within age group and sex (i) in relation to the total human population (pop) in the northern region (NR), where deviations from zero indicate overrepresentation vs. underrepresentation, as calculated by [index]i = [{(#NE)i½(#NE)NR}½{(#pop)i½(#pop)NR}–1].

Figure 1. Indexed relative distribution of nephropathia epidemica (NE) cases during 1991 to 1998, within age group and sex (i) in relation to the total human population (pop) in the northern region (NR), where deviations from zero indicate overrepresentation vs. underrepresentation, as calculated by [index]i = [{(#NE)i½(#NE)NR}½{(#pop)i½(#pop)NR}–1].

Main Article

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