TB was almost wiped out.
It seems to me I read a story once that because homosexuals had weak immune systems and were contracting TB and not taking medications properly that this strain was growing.
Unfortunately, this is a part of the problem. We are keeping people with chronic illnesses alive much longer. With chronic disease comes decreased resistance to infeceions that normal people can often fight off. When the people with a chronic illnes are exposed to the disease (like TB), their immune systems are too weak to fight it, they get the disease, and then become, essentially, petri dishes. They are infectious, contagious, and exposing the people around them to the illness for who knows how long because they simply cannot fight off the disease, even with antibiotic therapy.