Yes, you can. When you keep in touch with your friend it makes the isolation period easier for him. Visitors need to wear respirators when they go to the isolation room. Make sure that you put on the respirator in a correctly and it sits tightly on your face. Ask the staff to help you. Small children are not usually allowed to visit. They do not know how to use a respirator and may get infected. Read more about isolation here.
TB can be cured, let’s do it together.