(Washington, DC)  --  President Biden is praising the approval of the Johnson & Johnson COVID-19 vaccine, but says the fight against the coronavirus is "far from over."  In a statement released by the White House Saturday night, the President applauded more people getting vaccinated, but added "we cannot let our guard down."  The U.S. vaccinated its highest number of people on Friday, as two-point-four million people received shots.  The new Johnson & Johnson vaccine only requires a single dose, as opposed to the Pfizer and Moderna vaccines, which need two shots.