In Hungary, their most frequent prey are common voles and bank voles.

Other animals which are commonly seen within the grounds are the red squirrel, bank vole, and the Short-toed Treecreeper.

A £1 million project to redevelop the central valley, completed in 2002, has created a haven for kingfishers, bank voles, butterflies, dragonflies, and several species of waterfowl.

Puumala is carried by its rodent host, the bank vole (Clethrionomys glareolus) and is present through most of Europe excluding the Mediterranean region.

The bank vole is found in western Europe and northern Asia.

The bank vole lives in woodland, hedgerows and other dense vegetation such as bracken and bramble.

The bank vole is the reservoir for the virus, which humans contract through inhalation of aerosolised vole droppings.

This indicates it has been opened by a small rodent, e.g., the dormouse, wood mouse, or bank vole.

The bank vole shows an interesting contrast between this trend and the opposite one during trapping that the likelihood of capture increases with age using live traps.

The bank vole was first identified in 1964 in northwest Kerry.