Hello! I am reaching out to ask for advice. My father in law recently completed chemotherapy, radiation, and surgery to remove a tumor in his esophagus. His surgery was 2 weeks ago. My husband and I want to travel via plane to visit him but we have covid concerns. We are all vaccinated (husband, father in law, me) and have been since february of this year. My husband and I will also take a covid test before boarding our flight. Given these precautions and circumstances, is it safe to visit my father in law who is a high-risk patient?