Mouse hepatitis virus S in weanling Swiss mice following intranasal inoculation.

Stephen W Barthold, A. L. Smith

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

Three-week-old outbred mice were inoculated intranasally with a mildly pathogenic strain of mouse hepatitis virus (MHV-S). Tissues were analyzed for distribution of infectious virus, lesions, and viral antigen at intervals up to 49 days after inoculation. Sera were tested for neutralizing antibody to MHV-S. Within the first week of infection, virus was isolated from lung and brain of most mice and liver of one mouse, but not from blood, spleen, or intestine. Microscopic lesions consisted of mild olfactory mucosal necrosis, neuronal necrosis of olfactory bulbs and tracts, lymphoplasmacytic infiltrates and vacuolation in the brain, mild nonsuppurative pulmonary perivascular lymphocyte infiltration, focal interstitial pneumonia, and focal necrotizing hepatitis. The presence and distribution of MHV antigen, as determined by indirect immunofluorescence, correlated with virus recovery and acute lesions. No virus or antigen was demonstrable beyond day 7. Serum antibody was first detected on day 10, and titers peaked on day 28 after infection.

Original languageEnglish (US)
Pages (from-to)355-360
Number of pages6
JournalLaboratory Animal Science
Volume33
Issue number4
StatePublished - Aug 1983
Externally publishedYes

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ASJC Scopus subject areas

  • Animal Science and Zoology
  • veterinary(all)

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