How The Body's Immune System Responds To Norovirus
The virus enters the body and then make it's way to the small intestine and then "explodes" to make more copies of the virus. While this happens the immune system notices the cells dies and T-cells allow your body to mount an immune response against it. They go to B-cells and a natural produce antibody. The antibody will shut off the virus and the person will be immune to the strain of norovirus.