Ahead of the G7 summit next month in the United Kingdom, UNICEF today put out an urgent call for leaders to pool their excess COVID-19 vaccine capacity to make up for a 125-million-dose gap in the COVAX program.The plea, which comes as the B1617 and other variants are sparking fresh surges in several countries, was followed by an announcement from US President Joe Biden that the United States will donate 20 million doses of approved vaccine abroad.Vaccine pleaIn a statement, UNICEF's Executive Director Henrietta Fore, MPA, said the COVAX program, designed to ensure equitable access to vaccines, will soon deliver its 65 millionth dose, but should have delivered at least 170 million.