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Adaptive immune response to coronaviruses infection. Dendritic cells presented the viral antigens to T lymphocytes. T cells differentiate into different subtypes under the influence of secreted cytokines. Th1 helps CD8+ T cells to eradicate infected cells by secreting interferon-gamma. Th17 cytokines attract inflammatory cells to the infection site, and IL-4 produced by Th2 cells activates B cells to secrete neutralizing antibodies.
