A type of herpes virus that causes blisters or painful sores on the skin.
There are 2 types of herpes simplex virus. Herpes simplex virus type 1 (HSV-1) causes cold sores and fever blisters in and around the mouth. Herpes simplex virus type 2 (HSV-2) causes genital herpes.
Also called Human herpesvirus 1( HHV-1) and Human herpesvirus 2( HHV-2).
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