What is meant by the following terms: acquired immunity, cell-mediated immunity, humoral immunity, and hypersensitivity? What is an autoantibody? What are some of the postulated mechanisms that result...

What is meant by the following terms: acquired immunity, cell-mediated immunity, humoral immunity, and hypersensitivity?

What is an autoantibody? What are some of the postulated mechanisms that result in autoantibody formation? What is the effect of autoantibody directed against the patient’s own blood cells?