"Tuberculosis kills two million people every year, a tragedy of which Smruti Vidwans was all too aware growing up in India. Resistance to TB drugs is on the rise, and Vidwans thinks the solution may be new drugs that dont kill the bacteria but block the proteins that allow them to reproduce in people. Shes launching a company to develop such drugs. Its a huge challenge, but those who know her say shes up to the task."