This is the key at the moment, or one of the keys; it's investing more in research. Fortunately, two new anti-TB drugs have come along in the last couple of years. The thing is that we don't know yet how to use these in combination. We can't just use one anti-TB drug to effect a cure. We need to use them in combination. We don't know how to best combine the drugs at the moment. We need to research this and we need to develop other better, more tolerable drug options.
So yes, research and development is very important at this stage.