Immunocompetent Mouse Model for Crimean-Congo Hemorrhagic Fever Virus [article]

David W Hawman, Kimberly Meade-White, Shanna Leventhal, Friederike Feldmann, Atsushi Okumura, Brian Smith, Dana Scott, Heinz Feldmann
2020 bioRxiv   pre-print
Crimean-Congo hemorrhagic fever (CCHF) is a severe tick-borne febrile illness with wide geographic distribution. CCHF is caused by infection with the Crimean-Congo hemorrhagic fever virus (CCHFV) and case fatality rates can be as high as 30%. Despite causing severe disease in humans, our understanding of the host and viral determinants of CCHFV pathogenesis are limited. A major limitation in the investigation of CCHF has been the lack of suitable small animal models. Wild-type mice are
more » ... to clinical isolates of CCHFV and consequently, mice must be deficient in type I interferon responses to study the more severe aspects of CCHFV. We report here a mouse-adapted variant of CCHFV that recapitulates in adult, immunocompetent mice the severe CCHF observed in humans. This mouse-adapted variant of CCHFV significantly improves our ability to study host and viral determinants of CCHFV-induced disease in a highly tractable mouse model.
doi:10.1101/2020.11.05.369520 fatcat:tnkhi54fhzf6tok3klyqivrqm4