After three years of heading Medecins Sans Frontieres (MSF), or Doctor Without Borders, Unni Krishnan Karunakara, 49, on September 30, will hand over the baton to his replacement. But even on his last weeks on the job, he was still dealing with urgent cases, one of which brought him to Indonesia last August.

One of the items on his agenda during his trip to Jakarta was the discussion of diseases afflicting poor people in developing countries. "Indo