How is it possible to contract herpes in one area and not both?

How is it possible to contract herpes in one area and not both?

Different strains of the same virus. Kinda like there are a lot of different strains of the flue. That's how you can still get the flue after you had a flue shot. It was a strain you didn't get vaccinated for.Herpes simplex 1 usually occurs in the mouth region and Simplex 2 around the genitals. It all depends on where the virus is harbored, S1 tends to incubate near the ear and S2 around the lower spine, neither travel very far when the opportunity arises. You can get S1 on the genitals and S2 on the mouth from contact.

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