42+ Natural Active Immunity Example UK. Naturally acquired active immunity occurs when the person is exposed to a live pathogen, develops the disease, and becomes immune as a result of wild infection, for example with hepatitis a virus (hav) and subsequent recovery, gives rise to a natural active immune response usually leading to. Active immunity is a resistance to disease through the creation of antibodies by the immune system.
As opposed to passive immunity, where antibodies are injected into an organism during pregnancy or artificially, active immunity requires a process of training immune cells to recognize and counteract.
For example, if you are infected with chickenpox, your immune similarly to the natural active immunity process, once you have taken vaccination for any particular disease your body produces new antibodies with memory. Free learning resources for students covering all major areas of biology. The agents used for this purpose. Active and passive immunity keep us from becoming sick.