Explain the role of B-lymphocytes and T-lymphocytes in the defence of the body against a virus infection

B-lymphocytes are involved in the humoral response and produce antibodies specific to the antigen. The antibodies bind to antigens and causes the virus to clump together/agglutinate.T-lymphocytes are involved in the cell-mediated response and are involved in producing T-helper cells and T killer cells. Killer T-cells kill cells infected by the virus using proteins such as perforin. T helper cells are involved in aiding the clonal expansion of B cells and also encourages phagocytosis of the agglutinated virus. B lymphocytes also produce memory cells to produce a faster immune response if it ever comes into contact with the same virus again.