title: Natural occurrence of leptospirosis in the meadow vole, Microtus pennsylvanicus.
mesh_terms: D000818:Animals; D003411:Arvicolinae; D065948:Grassland; D007922:Leptospirosis / Q000662:veterinary*; D012376:Rodent Diseases
keywords: LEPTOSPIROSIS/veterinary; RODENTS/diseases