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HSV-1 is Herpes simplex virus type 1. Most HSV-1 infections become persistent, which is why people with cold sores get cold sores repeatedly. The virus becomes dormant in certain nerve cells, and during periods of stress the virus can reactivate and the cold sores reappear.

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17y ago

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If you have a cold sore and you lick your lips and develop tiny red bumps on your tongue did you just spread the HSV1 to your tongue?

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Cold sores are caused by the herpes simplex virus. No doubt you've heard of "herpes" before, but don't jump ahead of yourself. There are actually two types of herpes simplex virus, "type 1" and "type 2." Type 1 herpes simplex virus. Herpes simplex virus type 1 ("HSV1") generally only infects those body tissues that lie "above the waistline" and it is HSV1 that causes cold sores in the majority of cases. Type 2 herpes simplex virus. Herpes simplex virus type 2 ("HSV2") usually only infects those body tissues that lie "below the waistline" and it is this virus that is also known as "genital herpes." Herpes simplex virus type 2 is not usually the virus that causes cold sores, although it can.


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