Pathogenicity and virulence mechanisms of Lassa virus and its animal modeling, diagnostic, prophylactic, and therapeutic developments

Lassa fever (LF) is a deadly viral hemorrhagic disease that is endemic to West Africa. The causative agent of LF is Lassa virus (LASV), which causes approximately 300,000 infections and 5,000 deaths annually. There are currently no approved therapeutics or FDA-approved vaccines against LASV. The hig...

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Main Authors: Hannah L. Murphy, Hinh Ly
Format: Article
Language:English
Published: Taylor & Francis Group 2021-12-01
Series:Virulence
Subjects:
Online Access:http://dx.doi.org/10.1080/21505594.2021.2000290
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author Hannah L. Murphy
Hinh Ly
author_facet Hannah L. Murphy
Hinh Ly
author_sort Hannah L. Murphy
collection DOAJ
description Lassa fever (LF) is a deadly viral hemorrhagic disease that is endemic to West Africa. The causative agent of LF is Lassa virus (LASV), which causes approximately 300,000 infections and 5,000 deaths annually. There are currently no approved therapeutics or FDA-approved vaccines against LASV. The high genetic variability between LASV strains and immune evasion mediated by the virus complicate the development of effective therapeutics and vaccines. Here, we aim to provide a comprehensive review of the basic biology of LASV and its mechanisms of disease pathogenesis and virulence in various animal models, as well as an update on prospective vaccines, therapeutics, and diagnostics for LF. Until effective vaccines and/or therapeutics are available for use to prevent or treat LF, a better level of understanding of the basic biology of LASV, its natural genetic variations and immune evasion mechanisms as potential pathogenicity factors, and of the rodent reservoir-vector populations and their geographical distributions, is necessary for the development of accurate diagnostics and effective therapeutics and vaccines against this deadly human viral pathogen.
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spelling doaj.art-2ea00ca7f82649a39afa9736e968eae72022-12-21T19:36:41ZengTaylor & Francis GroupVirulence2150-55942150-56082021-12-011212989301410.1080/21505594.2021.20002902000290Pathogenicity and virulence mechanisms of Lassa virus and its animal modeling, diagnostic, prophylactic, and therapeutic developmentsHannah L. Murphy0Hinh Ly1Comparative & Molecular Biosciences Graduate Program, College of Veterinary Medicine, University of MinnesotaComparative & Molecular Biosciences Graduate Program, College of Veterinary Medicine, University of MinnesotaLassa fever (LF) is a deadly viral hemorrhagic disease that is endemic to West Africa. The causative agent of LF is Lassa virus (LASV), which causes approximately 300,000 infections and 5,000 deaths annually. There are currently no approved therapeutics or FDA-approved vaccines against LASV. The high genetic variability between LASV strains and immune evasion mediated by the virus complicate the development of effective therapeutics and vaccines. Here, we aim to provide a comprehensive review of the basic biology of LASV and its mechanisms of disease pathogenesis and virulence in various animal models, as well as an update on prospective vaccines, therapeutics, and diagnostics for LF. Until effective vaccines and/or therapeutics are available for use to prevent or treat LF, a better level of understanding of the basic biology of LASV, its natural genetic variations and immune evasion mechanisms as potential pathogenicity factors, and of the rodent reservoir-vector populations and their geographical distributions, is necessary for the development of accurate diagnostics and effective therapeutics and vaccines against this deadly human viral pathogen.http://dx.doi.org/10.1080/21505594.2021.2000290lassa virusarenavirusmammarenaviruspathogenicitypathogenesisvirulencevaccinetherapeuticsdiagnosticshemorrhagic fevers
spellingShingle Hannah L. Murphy
Hinh Ly
Pathogenicity and virulence mechanisms of Lassa virus and its animal modeling, diagnostic, prophylactic, and therapeutic developments
Virulence
lassa virus
arenavirus
mammarenavirus
pathogenicity
pathogenesis
virulence
vaccine
therapeutics
diagnostics
hemorrhagic fevers
title Pathogenicity and virulence mechanisms of Lassa virus and its animal modeling, diagnostic, prophylactic, and therapeutic developments
title_full Pathogenicity and virulence mechanisms of Lassa virus and its animal modeling, diagnostic, prophylactic, and therapeutic developments
title_fullStr Pathogenicity and virulence mechanisms of Lassa virus and its animal modeling, diagnostic, prophylactic, and therapeutic developments
title_full_unstemmed Pathogenicity and virulence mechanisms of Lassa virus and its animal modeling, diagnostic, prophylactic, and therapeutic developments
title_short Pathogenicity and virulence mechanisms of Lassa virus and its animal modeling, diagnostic, prophylactic, and therapeutic developments
title_sort pathogenicity and virulence mechanisms of lassa virus and its animal modeling diagnostic prophylactic and therapeutic developments
topic lassa virus
arenavirus
mammarenavirus
pathogenicity
pathogenesis
virulence
vaccine
therapeutics
diagnostics
hemorrhagic fevers
url http://dx.doi.org/10.1080/21505594.2021.2000290
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