In 2011, Al-Nahyan and the Gates Foundation pledged $50 million each to fund the purchase and delivery of vaccines for children in Afghanistan and Pakistan. Two-thirds of the total $100 million were given to the GAVI Alliance to purchase and administer the pentavalent vaccine and the pneumococcal vaccine, immunizing approximately 5 million Afghan children against six diseases. The remainder of the donation was allocated to the World Health Organization, which used it to purchase and administer the oral polio vaccine to approximately 35 million children in Afghanistan and Pakistan. The GPEI announced in April 2018 that the UAE had completed the US$120 million commitment made by Al Nahyan by dispersing the final US$12 million of the pledge made at the 2013 Global Vaccine Summit in Abu Dhabi.