FACTOID # 54: The Mall in Washington, D.C. is 1.4 times larger than Vatican City.
 
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Encyclopedia > Specific immunity

The combination of humoral immunity and cell-mediated immunity. Humoral immunity is mediated by secreted antibodies, produced in the cells of the B lymphocyte lineage (B cell). ... Cell-mediated immunity is an immune response that does not involve antibodies but rather involves the activation of macrophages and NK-cells, the production of antigen-specific cytotoxic T-lymphocytes, and the release of various cytokines in response to an antigen. ...



 

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