Emerging Infectious Disease ISSN: 1080-6059

Outbreak of Puumala Virus Infection, Sweden

Lisa Pettersson*, Jens Boman*†, Per Juto*, Magnus Evander*

, and Clas Ahlm*

Author affiliations: *Umeå University, Umeå, Sweden; †County Council of Västerbotten, Umeå, Sweden;

Figure 2

Climate conditions, December 1998–2006, in the nephropathia epidemica outbreak area of Västerbotten County, Sweden. A) Number of days with a snow cover. B) Average temperature. Snow cover was defined as a snow depth >0 cm. Measurements were made in locations ≈30 km from the coast. Data were obtained from the Swedish Meteorological and Hydrological Institute.

Figure 2. Climate conditions, December 1998–2006, in the nephropathia epidemica outbreak area of Västerbotten County, Sweden. A) Number of days with a snow cover. B) Average temperature. Snow cover was defined as a snow depth >0 cm. Measurements were made in locations ≈30 km from the coast. Data were obtained from the Swedish Meteorological and Hydrological Institute.

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