herpes viruses
Cold sores are caused by herpes simplex virus. Signs and symptoms of herpes infection. Herpesviruses Herpes Simplex I Ii Cold Sores Genital Herpes Herpes simplex virus 1 and 2 hsv 1 and hsv 2 also known as human herpesvirus 1 and 2 hhv 1 and hhv 2 are two members of the human herpesviridae family a set of viruses that produce viral infections in the majority of humans.
