The Bill & Melinda Gates Foundation  is accepting applications for Round 13 of its Grand Challenges Explorations initiative, which seeks innovative solutions to some of the world’s most pressing global health and development problems. Great ideas come from everywhere, and grants have been awarded for over 900 projects in over 50 countries to date.

Proposals are being accepted through May 6, 2014. For more information on this opportunity visit Grand Challenges in Global Health.