Impaired immunitySharing crowded spaces such as dormitories or locker roomsUsing IV drugsHaving a serious illnessAge: ChildBeing an athlete, especially in sports using direct contact such as wrestling and footballBeing a prisonerBeing a member of the militaryExposure to animals such as being a pet owner, veterinarian, or pig farmerUsing antibioticsHaving a chronic skin disorderHaving a woundBeing