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Virology. 2011 Jul 20;416(1-2):26-31. doi: 10.1016/j.virol.2011.04.010. Epub 2011 May 20.

Canine pneumovirus replicates in mouse lung tissue and elicits inflammatory pathology.

Author information

  • 1Laboratory of Allergic Diseases, NIAID, NIH, Bethesda, MD 20892, USA.

Abstract

Canine pneumovirus (CnPnV) was recently isolated from the respiratory tracts of shelter dogs and shares sequence similarity with the rodent pathogen, pneumonia virus of mice (PVM). We show here that CnPnV replicates in and can elicit local proinflammatory cytokine production and neutrophil recruitment to lung tissue and the airways. In contrast to PVM J3666 infection, fatal CnPnV infections are observed only in response to high titer intranasal inocula (>67 TCID(50) units). Sera from mice that recover from CnPnV infection contain antibodies that cross-react with PVM antigens; these mice are protected against lethal PVM infection. Given these findings, it will be intriguing to determine the relative role(s) of CnPnV and PVM in eliciting respiratory symptoms in susceptible canine species.

Published by Elsevier Inc.

PMID:
21600624
[PubMed - indexed for MEDLINE]
PMCID:
PMC3112256
Free PMC Article

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