The Group of Seven (G7), a coalition of the world’s seven wealthiest democracies, announced on June 13 it will purchase and donate 1 billion vaccine doses to low-income countries over the next 12 months, with at least 700 million doses distributed before the end of this year.

This is a historic commitment. It is also one that falls far short of the global need, particularly at a time when the Delta variant, against which existing vaccines are less effective, is spreading rapidly.