Human Influenza A Virus-Specific CD8+ T-Cell Response Is Long-lived.

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    • Abstract:
      Animal and human studies have demonstrated the importance of influenza A virus (IAV)-specific CD8+ cytotoxic T lymphocytes (CTLs) in heterosubtypic cross-protective immunity. Using peripheral blood mononuclear cells obtained intermittently from healthy HLA-typed blood donors between 1999 and 2012, we were able to demonstrate that IAV-specific CTLs are long-lived. Intercurrent IAV infections transiently increase the frequency of functionally distinct subsets of IAV-specific CTLs, in particular effector and effector memory T cells. [ABSTRACT FROM AUTHOR]
    • Abstract:
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