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The numbers of small rodents in northern Sweden fluctuate heavily, peaking every 3 or 4 years. We found that the incidence of Guillain-Barré syndrome and insulin-dependent diabetes mellitus, as well as the number of deaths caused by myocarditis, followed the fluctuations in numbers of bank voles, although with different time lags. An environmental factor,(More)
Monoclonal antibodies (MAbs) against Puumala (PUU) virus, the aetiological agent of nephropathia epidemica, were produced by fusing activated spleen cells from a bank vole (Clethrionomys glareolus) with the mouse myeloma cell line SP2/0. This novel approach, utilizing the natural vector of PUU virus for hybridoma production, proved to be highly efficient,(More)
Small mammals trapped in Sweden were analysed for specific antibody responses against three hantavirus serotypes and for the presence of viral antigen. To determine the genetic identity of viral RNA in lungs of seropositive bank voles (Clethrionomys glareolus), polymerase chain reactions and subsequent partial sequencing of both the M and S segments were(More)
Wild bank voles (Clethrionomys glareolus) may develop diabetes in laboratory captivity. The aim of this study was to test whether bank voles develop type 1 diabetes in association with Ljungan virus. Two groups of bank voles were analyzed for diabetes, pancreas histology, autoantibodies to glutamic acid decarboxylase (GAD65), IA-2, and insulin by(More)
Ljungan virus (LV) is a suspected human pathogen recently isolated from bank voles in Sweden. This study describes the genetic characterization of a virus, M1146, which was isolated in 1962 from another vole species (Microtus montanus), trapped in Oregon, USA. Based on antigenic properties, M1146 was postulated previously as a putative member of the family(More)
Hantaviruses are endemic throughout the world and hosted by rodents and insectivores. Two human zoonoses, hemorrhagic fever with renal syndrome (HFRS) and hantavirus pulmonary syndrome (HPS), are caused by hantaviruses and case fatality rates have reached 12% for HFRS and 50% for HPS in some outbreaks. Symptomatic hantavirus infections in Europe are(More)
Bank voles kept in captivity may develop diabetes. We recently characterized beta-cell function of pancreatic islets from normal and glucose intolerant/diabetic bank voles. These animals had features of both human type 1 and type 2 diabetes. Cytokines may impair beta-cell function in both types of diabetes. Presently, we studied how pancreatic islets(More)