Host Defences

When the immune system encounters a virus it produces specific antibodies that bind to it and eliminate it. Antibodies present in the blood samples may be used to determine if the person has been exposed to the infection. The second line of defense is by cell-mediated and humoral immune response by the production of B cells and T helper cells. The immune system retains the memory of the infection hence a second encounter of the same virus is prevented and eliminated.

  • Track 1-1 Cell Mediated Immunity
  • Track 2-2 Humoral Immunity
  • Track 3-3 RNA Interference
  • Track 4-4 Immunopathology

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