B. Nonprimary first-episode genital HSV refers to patients with preexisting antibodies to one of the two types of virus who acquire the other virus anddevelop genital lesions.

• 初次非原发性生殖器疱疹指既往曾患有其他亚型的单纯疱疹而获得抗体生殖器疱疹症状，