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Occupation-Associated Fatal Limbic Encephalitis Caused by Variegated Squirrel Bornavirus 1, Germany, 2013.
Tappe, Dennis Schlottau, Kore Cadar, Daniel Hoffmann, Bernd Balke, Lorenz Bewig, Burkhard Hoffmann, Donata Eisermann, Philip Fickenscher, Helmut Krumbholz, Andi
Tappe, Dennis
Schlottau, Kore
Cadar, Daniel
Hoffmann, Bernd
Balke, Lorenz
Bewig, Burkhard
Hoffmann, Donata
Eisermann, Philip
Fickenscher, Helmut
Krumbholz, Andi
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2018-06-01
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Limbic encephalitis is commonly regarded as an autoimmune-mediated disease. However, after the recent detection of zoonotic variegated squirrel bornavirus 1 in a Prevost's squirrel (Callosciurus prevostii) in a zoo in northern Germany, we retrospectively investigated a fatal case in an autoantibody-seronegative animal caretaker who had worked at that zoo. The virus had been discovered in 2015 as the cause of a cluster of cases of fatal encephalitis among breeders of variegated squirrels (Sciurus variegatoides) in eastern Germany. Molecular assays and immunohistochemistry detected a limbic distribution of the virus in brain tissue of the animal caretaker. Phylogenetic analyses demonstrated a spillover infection from the Prevost's squirrel. Antibodies against bornaviruses were detected in the patient's cerebrospinal fluid by immunofluorescence and newly developed ELISAs and immunoblot. The putative antigenic epitope was identified on the viral nucleoprotein. Other zoo workers were not infected; however, avoidance of direct contact with exotic squirrels and screening of squirrels are recommended.
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1080-6059
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Attribution-NonCommercial-ShareAlike 3.0 United States