Dose-Dependent Response to Infection with Ebola Virus in the Ferret Model and Evidence of Viral Evolution in the Eye

Robert J. Watson*, Julia Tree, Susan A. Fotheringham, Yper Hall, Xiaofeng Dong, Kimberley Steeds, Jade Gouriet, Francisco J. Salguero, Christopher Burton, James Pitman, Linda Easterbrook, Kevin S. Richards, Jane Burton, Kevin Bewley, Christine Bruce, Julian A. Hiscox, Miles W. Carroll, Simon G.P. Funnell

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Filoviruses cause high-consequence infections with limited approved medical countermeasures (MCMs). MCM development is dependent upon well-characterized animal models for the assessment of antiviral agents and vaccines. Following large-scale Ebola virus (EBOV) disease outbreaks in Africa, some survivors are left with long-term sequelae and persistent virus in immune-privileged sites for many years. We report the characterization of the ferret as a model for Ebola virus infection, reproducing disease and lethality observed in humans. The onset of clinical signs is rapid, and EBOV is detected in the blood, oral, and rectal swabs and all tissues studied. We identify viral RNA in the eye (a site of immune privilege) and report on specific genomic changes in EBOV present in this structure. Thus, the ferret model has utility in testing MCMs that prevent or treat long-term EBOV persistence in immune-privileged sites.

Original languageEnglish
Article numbere00833-21
JournalJournal of Virology
Volume95
Issue number24
DOIs
Publication statusPublished - Nov 2021

Bibliographical note

Funding Information:
We gratefully acknowledge the support from the Biological Investigations Group at the National Infection Service, PHE, Porton Down, United Kingdom. We also acknowledge and thank Andre Charlotte, NIS, PHE, UK, for assistance in the statistical design of the studies conducted.

Funding Information:
This work was funded by the Biomedical Advanced Research and Development Authority (BARDA) under contract HHS0100201700016I, order HHSO10033003T. The sequencing and informatics work was funded by a U.S. Food and Drug Administration Medical Countermeasures Initiative contract (HHSF223201710194C).

Publisher Copyright:
© 2021 American Society for Microbiology. All rights reserved.

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