President Joe Biden said that the U.S. will have enough vaccine supply for all adults by the end of May, calling this important progress in the fight against COVID-19 .

In remarks from the White House on Tuesday, Biden announced that, thanks to the Food and Drug Administrations approval of the Johnson & Johnson vaccine last week, the country would now have enough vaccine supply for all adults by the end of May, two months earlier than the previous projection of the end of July.

However, the president cautioned that having enough supply was only half the battle, as the government also needs enough staff and vaccination sites for everyone to get inoculated.