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 herpesvirus family. HSV-1 causes cold sores.

HSV-1 has been implicated in Alzheimer's.

Several herpesviruses including HSV-2 may cause false positives on Lyme Disease tests.