Formerly: headed global health, Rockefeller Foundation; Professor of Global Health, Yale Univ.; Exec. Director, World Health Organization (WHO); Cabinet Director, WHO; established the Centre for Epidemiological Research at the South African Medical Research Council. Senior Vice-President, Global Health and Agriculture Policy, PepsiCo, leading engagement with major groups and new African initiatives at the nexus of agriculture and nutrition. On the advisory boards of the Clinton Global Initiative, the Chicago Council on Int'l Affairs' Agricultural Development Initiative, the World Economic Forum's New Vision for Agriculture, the NIH's Int'l Centre and the World Food Program USA. Author or co-author of over 200 articles covering global health.