A critical determinant of neurological disease associated with highly pathogenic tick-borne flavivirus in mice.

ABSTRACT:

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Tick-borne encephalitis virus (TBEV) and Omsk hemorrhagic fever virus (OHFV) are highly pathogenic tick-borne flaviviruses; TBEV causes neurological disease in humans, while OHFV causes a disease typically identified with hemorrhagic fever. Although TBEV and OHFV are closely related genetically, the viral determinants responsible for these distinct disease phenotypes have not been identified. In this study, chimeric viruses incorporating components of TBEV and OHFV were generated using infectious clone technology, and their pathological characteristics were analyzed in a mouse model to identify virus-specific determinants of disease. We found that only four amino acids near the C terminus of the NS5 protein were primarily responsible for the development of neurological d

SUBMITTER: Yoshii K 

PROVIDER: S-EPMC4019083 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature