Cell-mediated immunity is primarily mediated by T lymphocytes (T cells), which play a crucial role in the immune response against intracellular pathogens, such as viruses and some bacteria. This type of immunity involves the activation of cytotoxic T cells that directly kill infected cells, as well as helper T cells that assist in orchestrating the immune response. Additionally, antigen-presenting cells, like dendritic cells, are essential in presenting antigens to T cells, initiating and regulating the immune response.
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