n. 1. Herpes simplex 1, a herpes virus that causes oral herpes; also called type I Herpes. Syn. -- herpes simplex 1. [ WordNet 1.5 ]
n. 1. Herpes simplex 2, a herpes virus that can cause genital herpes; also called type II Herpes. Syn. -- herpes simplex 2. [ WordNet 1.5 ]