High- and upper-middle-income countries have administered almost half as many booster shots as the total number of doses administered in low-income countries, he said.
To meet global vaccination goals, Dr. Tedros said, “the barrier is not production. The barriers are politics and profit.”
Gordon Brown, the former British prime minister who is now the W.H.O.’s ambassador for global health financing, said the goal of vaccinating 40 percent of adults around the world by December, which was put forward last month at the Global Covid-19 Summit led by President Biden, had “no chance” of being met without action from wealthy countries.
Mr. Brown said 240 million vaccine doses were lying unused in the West, citing figures from Airfinity, a data research agency. He added that the number of unused doses was projected to reach 600 million by the end of December. A shortfall of 500 million doses in the global South could be alleviated by flying vaccine stockpiles to countries in need and by switching delivery contracts. Up to 100 million doses could pass their use-by dates and end up being destroyed, he said.
Ahead of the Group of 20 summit that starts in Rome on Oct. 30, Western leaders should make a plan to transfer vaccines, Mr. Brown said, and other G20 nations could follow suit.