Biden Vows Enough Vaccine ‘for Every Adult American’ by End of May March 3, 2021 Auto Bot Biden, Joseph R Jr, Coronavirus (2019-nCoV), Defense Production Act, Factories and Manufacturing, Food and Drug Administration, Johnson & Johnson, Merck & Company Inc, United States Politics and Government, Vaccination and Immunization 0 The pharmaceutical giant Merck & Co. agreed to help manufacture Johnson & Johnson’s coronavirus vaccine, in a deal partly brokered by the White House.