Baseline mapping of Oropouche virology, epidemiology, therapeutics, and vaccine research and development

Abstract Oropouche virus (OROV) is an arthropod-borne orthobunyavirus found in South America and causes Oropouche fever, a febrile infection similar to dengue. It is the second most prevalent arthropod-borne viral disease in South America after dengue. Over 500,000 cases have been diagnosed since th...

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Main Authors: Megan A. Files, Clairissa A. Hansen, Vanessa C. Herrera, Craig Schindewolf, Alan D. T. Barrett, David W. C. Beasley, Nigel Bourne, Gregg N. Milligan
Format: Article
Language:English
Published: Nature Portfolio 2022-03-01
Series:npj Vaccines
Online Access:https://doi.org/10.1038/s41541-022-00456-2
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author Megan A. Files
Clairissa A. Hansen
Vanessa C. Herrera
Craig Schindewolf
Alan D. T. Barrett
David W. C. Beasley
Nigel Bourne
Gregg N. Milligan
author_facet Megan A. Files
Clairissa A. Hansen
Vanessa C. Herrera
Craig Schindewolf
Alan D. T. Barrett
David W. C. Beasley
Nigel Bourne
Gregg N. Milligan
author_sort Megan A. Files
collection DOAJ
description Abstract Oropouche virus (OROV) is an arthropod-borne orthobunyavirus found in South America and causes Oropouche fever, a febrile infection similar to dengue. It is the second most prevalent arthropod-borne viral disease in South America after dengue. Over 500,000 cases have been diagnosed since the virus was first discovered in 1955; however, this is likely a significant underestimate given the limited availability of diagnostics. No fatalities have been reported to date, however, up to 60% of cases have a recurrent phase of disease within one month of recovery from the primary disease course. The main arthropod vector is the biting midge Culicoides paraensis, which has a geographic range as far north as the United States and demonstrates the potential for OROV to geographically expand. The transmission cycle is incompletely understood and vertebrate hosts include both non-human primates and birds further supporting the potential ability of the virus to spread. A number of candidate antivirals have been evaluated against OROV in vitro but none showed antiviral activity. Surprisingly, there is only one report in the literature on candidate vaccines. We suggest that OROV is an undervalued pathogen much like chikungunya, Schmallenberg, and Zika viruses were before they emerged. Overall, OROV is an important emerging disease that has been under-investigated and has the potential to cause large epidemics in the future. Further research, in particular candidate vaccines, is needed for this important pathogen.
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spelling doaj.art-1fc87419843048a4a1637e617990b3142023-11-02T01:53:30ZengNature Portfolionpj Vaccines2059-01052022-03-017111010.1038/s41541-022-00456-2Baseline mapping of Oropouche virology, epidemiology, therapeutics, and vaccine research and developmentMegan A. Files0Clairissa A. Hansen1Vanessa C. Herrera2Craig Schindewolf3Alan D. T. Barrett4David W. C. Beasley5Nigel Bourne6Gregg N. Milligan7Department of Microbiology and Immunology, University of Texas Medical BranchDepartment of Pathology, University of Texas Medical BranchDepartment of Preventive Medicine and Population Health, University of Texas Medical BranchDepartment of Microbiology and Immunology, University of Texas Medical BranchDepartment of Microbiology and Immunology, University of Texas Medical BranchDepartment of Microbiology and Immunology, University of Texas Medical BranchSealy Institute for Vaccine Sciences, University of Texas Medical BranchSealy Institute for Vaccine Sciences, University of Texas Medical BranchAbstract Oropouche virus (OROV) is an arthropod-borne orthobunyavirus found in South America and causes Oropouche fever, a febrile infection similar to dengue. It is the second most prevalent arthropod-borne viral disease in South America after dengue. Over 500,000 cases have been diagnosed since the virus was first discovered in 1955; however, this is likely a significant underestimate given the limited availability of diagnostics. No fatalities have been reported to date, however, up to 60% of cases have a recurrent phase of disease within one month of recovery from the primary disease course. The main arthropod vector is the biting midge Culicoides paraensis, which has a geographic range as far north as the United States and demonstrates the potential for OROV to geographically expand. The transmission cycle is incompletely understood and vertebrate hosts include both non-human primates and birds further supporting the potential ability of the virus to spread. A number of candidate antivirals have been evaluated against OROV in vitro but none showed antiviral activity. Surprisingly, there is only one report in the literature on candidate vaccines. We suggest that OROV is an undervalued pathogen much like chikungunya, Schmallenberg, and Zika viruses were before they emerged. Overall, OROV is an important emerging disease that has been under-investigated and has the potential to cause large epidemics in the future. Further research, in particular candidate vaccines, is needed for this important pathogen.https://doi.org/10.1038/s41541-022-00456-2
spellingShingle Megan A. Files
Clairissa A. Hansen
Vanessa C. Herrera
Craig Schindewolf
Alan D. T. Barrett
David W. C. Beasley
Nigel Bourne
Gregg N. Milligan
Baseline mapping of Oropouche virology, epidemiology, therapeutics, and vaccine research and development
npj Vaccines
title Baseline mapping of Oropouche virology, epidemiology, therapeutics, and vaccine research and development
title_full Baseline mapping of Oropouche virology, epidemiology, therapeutics, and vaccine research and development
title_fullStr Baseline mapping of Oropouche virology, epidemiology, therapeutics, and vaccine research and development
title_full_unstemmed Baseline mapping of Oropouche virology, epidemiology, therapeutics, and vaccine research and development
title_short Baseline mapping of Oropouche virology, epidemiology, therapeutics, and vaccine research and development
title_sort baseline mapping of oropouche virology epidemiology therapeutics and vaccine research and development
url https://doi.org/10.1038/s41541-022-00456-2
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