He holds a D.T.M.&H. from Liverpool, UK, and a medical degree and doctorate in medical science from the University of Copenhagen. From 1990 to 2007, he worked for the World Health Organization and from 2007 to 2009, for the Swiss Tropical and Public Health Institute. He is a member of the Board of Trustees of the Malaria Consortium. In the Philippines, he provides technical support for some public health programmes, including for persons with disabilities.