Bacteria! Bacteria! Bacteria! :)
The answer is Dendroaspis Polyepis (according to Google)
Answer: Memory B cells
Explanation:
Memory B cells remember the same pathogen for faster antibody production in future infections.
It is most likely Vulval herpes.
It is infection caused by Herpes simplex type I or type II. Herpes is manifested with vesicles that are aggregated and filled with clear fluid. These vesicles later rupture and thus form ulcers. Symptoms include pain, burning, or itching.