Sin Nombre Virus Shedding Patterns in Naturally Infected Deer Mice (Peromyscus maniculatus) in Relation to Duration of Infection

A 2-year capture-mark-recapture study was conducted in southern Manitoba, Canada, to test for an association between the duration of Sin Nombre virus (SNV) infection in deer mice ( Peromyscus maniculatus ) and virus shedding. Hantavirus-specific IgG antibodies were detected in 22.2% of captured deer...

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Veröffentlicht in:Vector borne and zoonotic diseases (Larchmont, N.Y.) N.Y.), 2008-02, Vol.8 (1), p.97-100
Hauptverfasser: Safronetz, David, Drebot, Michael A., Artsob, Harvey, Cote, Tyler, Makowski, Kai, Lindsay, L. Robbin
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Sprache:eng
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Zusammenfassung:A 2-year capture-mark-recapture study was conducted in southern Manitoba, Canada, to test for an association between the duration of Sin Nombre virus (SNV) infection in deer mice ( Peromyscus maniculatus ) and virus shedding. Hantavirus-specific IgG antibodies were detected in 22.2% of captured deer mice, and recently infected deer mice were identified based on the detection of low-avidity IgG antibodies. SNV RNA was detected in blood samples from the majority of seropositive deer mice with no significant difference in the association of SNV RNA between the low- and high-avidity groups (57.8% and 52.1%, respectively). A small subset of seropositive mice (11.6%) had detectable SNV RNA in oropharyngeal fluids (OPF) or urine. A greater proportion of deer mice with low-avidity antibodies had SNV RNA in OPF or urine compared with rodents with high-avidity antibodies (21% versus 6.8%, respectively). This is the first study of naturally infected deer mice to provide evidence that recently infected mice are more likely to shed SNV and thus might represent a greater risk of human infection.
ISSN:1530-3667
1557-7759
DOI:10.1089/vbz.2007.0113