Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA.
This week an international panel announces a list of 14 Grand Challenges in Global Health, and scientists throughout the world will be invited to submit grant proposals to pursue them with funds provided by the Bill and Melinda Gates Foundation. We describe the characteristics of these challenges and the process by which they were formulated and selected after receiving over 1000 responses to a "call for ideas" from the scientific community.