Kenyans queue to receive the AstraZeneca coronavirus vaccine donated by Britain, at the Makongeni Estate in Nairobi, Kenya Saturday, Aug. 14, 2021. In late June, the international system for sharing coronavirus vaccines sent about 530,000 doses to Britain – more than double the amount sent that month to the entire continent of Africa. It was the latest example of how a system that was supposed to guarantee low and middle-income countries vaccines is failing, leaving them at the mercy of haphazard donations from rich countries. (AP Photo/Brian Inganga)
LONDON — An international system to share coronavirus vaccines was supposed to guarantee that low and middle-income countries could get doses without being last in line and at the mercy of unreliable donations.