Hello, my dad has an immigrant visa interview coming up (idk when exactly, probably when the immigration ban is lifted, but the priority date is almost current). He has a 15-day work contract offer in Ghana and the Ivory Coast that pays quite well so he is thinking of going. Will that have any effect on medical exams, the visa process, or anything? Do you recommend that he goes or just not risk it? He will be taking a vaccine before going if he goes.