British Prime Minister Boris Johnson on Saturday called for leaders of the Group of Seven (G7) rich nations to make a commitment to vaccinate the entire world against COVID-19 by the end of 2022 when they meet in Britain this week.

Johnson will host the first in-person summit in almost two years of G7 leaders — which follows a meeting of the group's finance ministers which wrapped up earlier in the day — and said he would seek a pledge to hit the global vaccination goal.

"Vaccinating the world by the end of next year would be the single greatest feat in medical history," Johnson said in a statement. "I’m calling on my fellow G7 leaders to join us to end this terrible pandemic and pledge we will never allow the devastation wreaked by coronavirus to happen again."