Herpes simplex virus

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 eight known members of the Herpesviridae family.

HSV-1 causes cold sores while HSV-2 causes genital herpes.

Implicated in causation of other diseases

 * Possible cause of Alzheimer's.
 * FDA fast tracking Fibromyalgia drug which suppresses HSV-1

Cause of false positives in testing
Several herpesviruses including HSV-2 may cause false positives on Lyme Disease tests.