Question

which cells retain a memory of a specific pathogen long after an infection is over? enter the answer

Explanation:

Memory B - cells and memory T - cells are part of the adaptive immune system. They are formed during an initial immune response to a pathogen. After the infection is cleared, they remain in the body. If the same pathogen infects the body again, these memory cells can quickly recognize it and initiate a faster and stronger immune response.

Answer:

Memory B - cells and memory T - cells