"Crucially, the success of this plan requires equitable distribution," Guterres told reporters.
"Without a coordinated, equitable approach, a reduction of cases in any one country will not be sustained over time. For everyone's sake, we must urgently bring all countries to a high level of vaccination coverage," he said.
Guterres pushed the Group of 20 rich countries to deliver on their "desire to get the world vaccinated" at a summit in Rome later this month.
