Yes, because the virus sometimes comes out of hibernation and replicates itself. The replicated virus can be picked up by anther person. This stage is called 'viral shedding'. Google it for more info.
You can read more about viral shedding, and genital herpes, in the Herpes Handbook, link here:
http://www.westoverheights.com/genital_herpes/handbook/view_the_chapters.html