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  • Title: T lymphocyte responses to flaviviruses - diverse cell populations affect tendency toward protection and disease.
    Author: Sanchez Vargas LA, Mathew A, Rothman AL.
    Journal: Curr Opin Virol; 2020 Aug; 43():28-34. PubMed ID: 32810785.
    Abstract:
    Dengue virus (DENV), Yellow Fever virus, West Nile virus, Japanese encephalitis virus and Zika virus are medically important flaviviruses transmitted to humans by mosquitoes and circulate in overlapping geographic areas. Cross-reactive immune responses have been demonstrated among the flaviviruses, particularly the four DENV serotypes. The immunological imprint left by a flavivirus infection can therefore have profound effects on the responses to subsequent infections. In this review we summarize recent research focusing on T cell responses to DENV using clinical samples from prospective cohort studies in Asia. These data suggest that durability of different T cell populations after natural infection or vaccination is an important consideration for the outcome of subsequent flavivirus exposures and we argue for continued investigation in the context of longitudinal cohort studies.
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