Rift Valley Fever Virus Infection Causes Acute Encephalitis in the Ferret
ABSTRACT Rift Valley fever virus (RVFV) is a pathogen of both humans and livestock in Africa and the Middle East. Severe human disease is associated with hepatitis and/or encephalitis. Current pathogenesis studies rely on rodents and nonhuman primates, which have advantages and disadvantages. We eva...
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American Society for Microbiology
2020
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oai:doaj.org-article:a37141366b9f4ea5a5bc7702a5492d202021-11-15T15:30:58ZRift Valley Fever Virus Infection Causes Acute Encephalitis in the Ferret10.1128/mSphere.00798-202379-5042https://doaj.org/article/a37141366b9f4ea5a5bc7702a5492d202020-10-01T00:00:00Zhttps://journals.asm.org/doi/10.1128/mSphere.00798-20https://doaj.org/toc/2379-5042ABSTRACT Rift Valley fever virus (RVFV) is a pathogen of both humans and livestock in Africa and the Middle East. Severe human disease is associated with hepatitis and/or encephalitis. Current pathogenesis studies rely on rodents and nonhuman primates, which have advantages and disadvantages. We evaluated disease progression in Mustela putorius furo (the ferret) following intradermal (i.d.) or intranasal (i.n.) infection. Infected ferrets developed hyperpyrexia, weight loss, lymphopenia, and hypoalbuminemia. Three of four ferrets inoculated intranasally with RVFV developed central nervous system (CNS) disease that manifested as seizure, ataxia, and/or hind limb weakness at 8 to 11 days postinfection (dpi). Animals with clinical CNS disease had transient viral RNAemia, high viral RNA loads in the brain, and histopathological evidence of encephalitis. The ferret model will facilitate our understanding of how RVFV accesses the CNS and has utility for the evaluation of vaccines and/or therapeutics in preventing RVFV CNS disease. IMPORTANCE Animal models of viral disease are very important for understanding how viruses make people sick and for testing out drugs and vaccines to see if they can prevent disease. In this study, we identify the ferret as a model of encephalitis caused by Rift Valley fever virus (RVFV). This novel model will allow researchers to evaluate ways to prevent RVFV encephalitis.Dominique J. BarbeauJoseph R. AlbeSham NambulliNatasha L. Tilston-LunelAmy L. HartmanSeema S. LakdawalaEd KleinW. Paul DuprexAnita K. McElroyAmerican Society for MicrobiologyarticleRift Valley fever virusencephalitisferretanimal modelpathogenesisMicrobiologyQR1-502ENmSphere, Vol 5, Iss 5 (2020) |
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Rift Valley fever virus encephalitis ferret animal model pathogenesis Microbiology QR1-502 |
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Rift Valley fever virus encephalitis ferret animal model pathogenesis Microbiology QR1-502 Dominique J. Barbeau Joseph R. Albe Sham Nambulli Natasha L. Tilston-Lunel Amy L. Hartman Seema S. Lakdawala Ed Klein W. Paul Duprex Anita K. McElroy Rift Valley Fever Virus Infection Causes Acute Encephalitis in the Ferret |
description |
ABSTRACT Rift Valley fever virus (RVFV) is a pathogen of both humans and livestock in Africa and the Middle East. Severe human disease is associated with hepatitis and/or encephalitis. Current pathogenesis studies rely on rodents and nonhuman primates, which have advantages and disadvantages. We evaluated disease progression in Mustela putorius furo (the ferret) following intradermal (i.d.) or intranasal (i.n.) infection. Infected ferrets developed hyperpyrexia, weight loss, lymphopenia, and hypoalbuminemia. Three of four ferrets inoculated intranasally with RVFV developed central nervous system (CNS) disease that manifested as seizure, ataxia, and/or hind limb weakness at 8 to 11 days postinfection (dpi). Animals with clinical CNS disease had transient viral RNAemia, high viral RNA loads in the brain, and histopathological evidence of encephalitis. The ferret model will facilitate our understanding of how RVFV accesses the CNS and has utility for the evaluation of vaccines and/or therapeutics in preventing RVFV CNS disease. IMPORTANCE Animal models of viral disease are very important for understanding how viruses make people sick and for testing out drugs and vaccines to see if they can prevent disease. In this study, we identify the ferret as a model of encephalitis caused by Rift Valley fever virus (RVFV). This novel model will allow researchers to evaluate ways to prevent RVFV encephalitis. |
format |
article |
author |
Dominique J. Barbeau Joseph R. Albe Sham Nambulli Natasha L. Tilston-Lunel Amy L. Hartman Seema S. Lakdawala Ed Klein W. Paul Duprex Anita K. McElroy |
author_facet |
Dominique J. Barbeau Joseph R. Albe Sham Nambulli Natasha L. Tilston-Lunel Amy L. Hartman Seema S. Lakdawala Ed Klein W. Paul Duprex Anita K. McElroy |
author_sort |
Dominique J. Barbeau |
title |
Rift Valley Fever Virus Infection Causes Acute Encephalitis in the Ferret |
title_short |
Rift Valley Fever Virus Infection Causes Acute Encephalitis in the Ferret |
title_full |
Rift Valley Fever Virus Infection Causes Acute Encephalitis in the Ferret |
title_fullStr |
Rift Valley Fever Virus Infection Causes Acute Encephalitis in the Ferret |
title_full_unstemmed |
Rift Valley Fever Virus Infection Causes Acute Encephalitis in the Ferret |
title_sort |
rift valley fever virus infection causes acute encephalitis in the ferret |
publisher |
American Society for Microbiology |
publishDate |
2020 |
url |
https://doaj.org/article/a37141366b9f4ea5a5bc7702a5492d20 |
work_keys_str_mv |
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1718427904097910784 |