Swaziland's deadly TB nightmare

What if I told you that a third of the world’s population is latently infected with a deadly disease? And that the disease has mutated into a more deadly form that can’t be treated with normal drugs? And that, in some places, the disease is completely untreatable? Oh, and that the disease is airborne—just sitting next to someone who has it could be enough to catch it? And although fifty million people worldwide are infected with the mutant form, the only drugs that treat it can make you vomit, lose your hearing, or become psychotic?