Bank vole (IMAGE) University of Jyväskylä - Jyväskylän yliopisto Caption Bank vole is the most common rodent species in Northern Europe and the reservoir host for Puumala hantavirus and Borrelia bacteria causing Lyme Borreliosis. Credit Picture credit: Ilze Brila Usage Restrictions Can be used in news and social media coverage with credit information. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.