A 52-yeаr-оld mаle whо underwent kidney trаnsplantatiоn 8 months ago presents for a routine follow-up appointment. He asks about receiving vaccinations, as he has not had any immunizations since his transplant. His 4-year-old granddaughter, who lives with him, is scheduled to receive the varicella (chickenpox) vaccine next week. Which of the following recommendations is most appropriate for this transplant recipient?