Yes! Grapefruit! It interacts with your immunosuppression medication. Also, you are taking medications that suppress your immune system and which place you at greater risk of food borne illness.
(1) Wash your hands, before, during, after: using the restroom, cooking, handling raw meats and before eating.
(2) Cook all animal products to the minimum internal temperature recommended by the USDA for food safety.
(3) Avoid cross contamination
(4) Store leftovers safely in the refrigerator and reheat to 165 degrees F°.
For more in-depth detail check out the USDA food safety guidelines for people living with an organ transplant. https://www.fsis.usda.gov/sites/default/files/media_file/2021-04/at-risk-booklet.pdf This answer is a very general list/guide, check with your transplant center for their specific list of other food items to avoid.