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<p>The Crimean-Congo hemorrhagic fever virus (CCHFV) causes Crimean-Congo hemorrhagic fever (CCHF), a widely distributed disease with significant morbidity and mortality. The virus has high genetic diversity correlated with geographic distribution but limited temporal evolution within regions. Despite this, cases of CCHF within a region present as a spectrum of disease from often unrecognized asymptomatic infections to severe, fatal viral hemorrhagic fever, suggesting host factors may play a role in disease outcome. We investigated the effect of host genetic diversity on the outcome of CCHFV infection in the genetically diverse Collaborative cross (CC)-mouse model. Infected mice recapitulated the full spectrum of disease recognized in humans, and similar to human disease, virus replication, tissue pathology, and inflammatory responses were associated with disease severity. Our study demonstrates that host genetics contribute to disease outcome in CCHF infection and establishes the CC mouse resource as a model to understand how host genetic diversity contributes to CCHF outcome.</p>

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Host genetic diversity contributes to disease outcome in Crimean-Congo hemorrhagic fever virus infection

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年2月27日

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  • Deepashri Rao,
  • Matthew Lewis,
  • Kimberly Meade-White,
  • Carl Shaia,
  • Atsushi Okumura,
  • Martin T. Ferris,
  • Alexandra Schäfer,
  • Ralph Baric,
  • Heinz Feldmann,
  • David W. Hawman

摘要

The Crimean-Congo hemorrhagic fever virus (CCHFV) causes Crimean-Congo hemorrhagic fever (CCHF), a widely distributed disease with significant morbidity and mortality. The virus has high genetic diversity correlated with geographic distribution but limited temporal evolution within regions. Despite this, cases of CCHF within a region present as a spectrum of disease from often unrecognized asymptomatic infections to severe, fatal viral hemorrhagic fever, suggesting host factors may play a role in disease outcome. We investigated the effect of host genetic diversity on the outcome of CCHFV infection in the genetically diverse Collaborative cross (CC)-mouse model. Infected mice recapitulated the full spectrum of disease recognized in humans, and similar to human disease, virus replication, tissue pathology, and inflammatory responses were associated with disease severity. Our study demonstrates that host genetics contribute to disease outcome in CCHF infection and establishes the CC mouse resource as a model to understand how host genetic diversity contributes to CCHF outcome.