What is the advantages and disadvantages of active and passive immunity?

Active Immunity -The body reacts by producing antibodies to fight the pathogen. The antibody levels in the blood will rise and the boy will also retain a memory of of how to make these antibodies if it comes across the pathogen again. This process provides long-term protection from many diseases.Passive Immunity -Advantage: gives immediate protection against the pathogen.Disadvantage : Immunity is short lived and if the person encounters the disease again at a later date, the body has no memory of developing antibodies itself. This type of vaccination is only used in a few cases to give quick protection when it is thought the person may already have the disease.