vaccines February 26, 2021 5:55 pm FDA Authorizes Emergency Use of First Single-Shot Vaccine This makes the Johnson & Johnson vaccine the third vaccine to have emergency use authorization from the U.S. Food and Drug Administration. US & World Videos 1:36 A student brought a gun to middle school in Hartford: police 1:45 NYPD enters Columbia University in riot gear to clear protest 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name 2:04 Arrests made, camps removed during pro-Palestinian protest at UConn