A mouse model for evaluation of prophylaxis and therapy of Ebola hemorrhagic fever

Mike Bray, Kelly Davis, Tom Geisbert, Connie Schmaljohn, John Huggins

Research output: Contribution to journalArticle

124 Scopus citations

Abstract

The Zaire subtype of Ebola virus (EBO-Z) is lethal for newborn mice, but adult mice are resistant to the virus, which prevents their use as an animal model of lethal Ebola infection. We serially passed EBO-Z virus in progressively older suckling mice, eventually obtaining a plaque-purified virus that was lethal for mature, immunocompetent BALB/c and C57BL/6 inbred and ICR (CD-1) outbred mice. Pathologic changes in the liver and spleen of infected mice resembled those in EBOZ-infected primates. Virus titers in these tissues reached 109 pfu/g. The LD50 of mouse-adapted EBO-Z virus inoculated into the peritoneal cavity was ~1 virion. Mice were resistant to large doses of the same virus inoculated subcutaneously, intradermally, or intramuscularly. Mice injected peripherally with mouse-adapted or intraperitoneally with non-adapted EBO-Z virus resisted subsequent challenge with mouse-adapted virus.

Original languageEnglish (US)
Pages (from-to)S248-S258
JournalJournal of Infectious Diseases
Volume179
Issue numberSUPPL. 1
DOIs
StatePublished - Jan 1 1999

ASJC Scopus subject areas

  • Immunology and Allergy
  • Infectious Diseases

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