WHO: 'We need to change that distribution pattern very quickly' The WTO talks are taking place as some wealthy countries face criticism for cornering billions of COVID shots — many times the size of their populations — while leaving poor countries struggling for supplies. Experts say the global scramble for vaccines, or vaccine nationalism, risks prolonging the pandemic. "We have to recognize that this virus knows no boundaries, it travels around the globe and the response to it should also be global. It should be based on international solidarity," said Ellen 't Hoen, the director of Medicines Law & Policy — a nonprofit campaigning for greater access to medicines.