Most things I read shows its a virus that thrives only inside the body however have read a couple of articles like this one www.researchgate.net/publication/311616485_Testing_of_the_Adhesion_of_Herpes_Simplex_Virus_on_Textile_Substrates_and_Its_Inactivation_by_Household_Laundry_Processes not sure how reputable this is but they indicate it can live for a few hours on surfaces and clothes etc and could be passed on by someone touching the clothes etc.