That is an interesting question. I was not diagnosed with MAC till I became a retired elderly lady. However , as a child I had an X-ray and the comment was it looked like “ I had come in contact with TB.” I had symptoms and wonder to this day if it weren’t really MAC. I swam in public pools a lot. I’m thinking you are lucky to be diagnosed young. Your body will be better able to get rid of it! Good luck! Irene5