herpes simplex virus type

herpes simplex virus type 2 A herpes virus that causes genital herpes, which is characterized by sores in the genital area. Abbreviated HSV-2. HSV-2 may also be a cause of fever blisters around the mouth. In rare cases, as when a patient’s immune system is severely compromised, this virus can cause widespread infection of the body. Treatment involves use of topical or oral antiviral medication. Also known as human herpesvirus 2 (HHV-2). See also genital herpes.