Active Or Naturally Acquired Immunity?

There are four types of acquired immunity of which are characterized by being natural or artificial, as well as active or passive. Natural is a result of normal environmental exposure where artificial is due to medical involvement. Active means that an immune response occurred in an individual, including antibody production where passive occurs from the deliverance of preformed antibodies.
1. Naturally acquired active immunity occurs when an individual is exposed to a live pathogen of which enters the body by a natural route, such as an infection, and a primary immune response develops to produce antibodies against the antigen. As a result, memory cells are retained by the individual’s immune system to provide immunity against the same pathogen in the future. Consider the following as an example. One day my brother came home from pre-school after spending time with a classmate suffering from chickenpox. As a result, not only did my brother become infected, but so did I. This demonstrates naturally acquired active immunity because I was exposed to the live pathogen and became infected. My immune system responded by producing antibodies against the …show more content…
Naturally acquired passive immunity results if antibodies produced in response to a pathogen by an individual are naturally transferred to another individual. The individual receiving the antibodies develops immunity without their own immune system being involved, thus immunity is short-term since memory cells could not be developed. This immunity is seen between mothers and fetuses/infants. Antibodies can be passed from mother to fetus via the placenta as well as from mother to infant via breast milk. For example, my mother was vaccinated against whooping cough and so her immune system produced antibodies against the pathogen. While pregnant, antibodies were able to pass from her to me via the placenta. This enabled me to have short-term immunity until I was able to synthesize my own antibodies after