Final answer:
The secondary response of immunologic memory, stronger and faster than the primary response, is called the anamnestic response. It is facilitated by memory cells created during the first exposure to a pathogen. This rapid reactivity prevents diseases from recurring.
Step-by-step explanation:
The secondary response of immunologic memory is often called the memory response or anamnestic response. When an individual is exposed to a pathogen for the first time, the primary immune response occurs, and a subset of B and T cells form memory cells which have the same antigen specificities. These memory cells do not become effector cells during the primary immune response. However, upon re-exposure to the same pathogen, these memory cells facilitate a secondary response that is far quicker and more effective than the first, often eliminating the pathogen before it can cause significant disease. This capacity for a heightened response to a subsequent exposure to the same antigen forms the core of immunologic memory, which can prevent diseases from recurring.