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Hantavirus and arenavirus antibody prevalence in rodents and humans in Trentino, Northern Italy

  • H. KALLIO-KOKKO (a1) (a2), J. LAAKKONEN (a1) (a3), A. RIZZOLI (a4), V. TAGLIAPIETRA (a4), I. CATTADORI (a5), S. E. PERKINS (a5), P. J. HUDSON (a5), A. CRISTOFOLINI (a6), W. VERSINI (a6), O. VAPALAHTI (a1) (a2) (a7), A. VAHERI (a1) (a2) and H. HENTTONEN (a3)...

Abstract

The spatial and temporal distribution of hantavirus and arenavirus antibody-positive wild rodents in Trentino, Italy, was studied using immunofluorescence assays (IFA) in two long-term sites trapped in 2000–2003, and six other sites trapped in 2002. The overall hantavirus seroprevalence in the bank voles, Clethrionomys glareolus (n=229) screened for Puumala virus (PUUV) antibodies was 0·4%, and that for Apodemus flavicollis mice (n=1416) screened for Dobrava virus (DOBV) antibodies was 0·2%. Antibodies against lymphocytic choriomeningitis virus (LCMV) were found in 82 (5·6%) of the 1472 tested rodents; the seroprevalence being 6·1% in A. flavicollis (n=1181), 3·3% in C. glareolus (n=276), and 14·3% in Microtus arvalis (n=7). Of the serum samples of 488 forestry workers studied by IFA, 12 were LCMV-IgG positive (2·5%) and one DOBV-IgG positive (0·2%), however, the latter could not be confirmed DOBV-specific with a neutralization assay. Our results show a widespread distribution but low prevalence of DOBV in Trentino, and demonstrate that the arenavirus antibodies are a common finding in several other rodent species besides the house mouse.

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Corresponding author

Department of Virology, Haartman Institute, POB 21, FIN-00014 University of Helsinki, Finland. (Email: Hannimari.Kallio-Kokko@helsinki.fi)

Hantavirus and arenavirus antibody prevalence in rodents and humans in Trentino, Northern Italy

  • H. KALLIO-KOKKO (a1) (a2), J. LAAKKONEN (a1) (a3), A. RIZZOLI (a4), V. TAGLIAPIETRA (a4), I. CATTADORI (a5), S. E. PERKINS (a5), P. J. HUDSON (a5), A. CRISTOFOLINI (a6), W. VERSINI (a6), O. VAPALAHTI (a1) (a2) (a7), A. VAHERI (a1) (a2) and H. HENTTONEN (a3)...

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