Puumala virus is named after a municipality in Finland. The virus is found predominantly in Scandinavia and Finland, although it has also been reported elsewhere in Northern Europe, Poland and Russia. Because the bank vole (Myodes glareolus) acts as a reservoir for the virus, nephropathia epidemica cases track with the vole population in a three- to four-year cycle. Humans are infected through inhalation of dust from vole droppings. 
In August 2014 was announced the death of an Israeli researcher studying the behavior of the bank vole in Finland. She had been affected by the Puumala virus which caused a complete breakdown of her immune system.
Puumala virus was discovered and named in 1980 by researchers in Finland.
- Discertation for doctoral exam; Distribution of Puumalavirus in Sweden, by C. Ahlm, second paragraph; latest access 2012-06-04
- Rose A, Vapalahti O, Lyytikäinen O, Nuorti P (January 2003). "Patterns of Puumala virus infection in Finland". Euro Surveill 8 (1): 9–13. PMID 12631978.
- Kallio ER, Voutilainen L, Vapalahti O, Vaheri A, Henttonen H, Koskela E, Mappes T (August 2007). "Endemic hantavirus infection impairs the winter survival of its rodent host". Ecology 88 (8): 1911–6. PMID 17824420. doi:10.1890/06-1620.1.
- Brummer-Korvenkontio, M.; Vaheri, A.; Hovi, T.; Von Bonsdorff, C. H.; Vuorimies, J.; Manni, T.; Penttinen, K.; Oker-Blom, N.; Lähdevirta, J. (1980). "Nephropathia epidemica: detection of antigen in bank voles and serologic diagnosis of human infection". The Journal of infectious diseases 141 (2): 131–134. PMID 6102587. doi:10.1093/infdis/141.2.131.
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