Plunging Johnson & Johnson Vaccine Supply Dents State Inoculation Efforts April 10, 2021 Auto Bot Coronavirus (2019-nCoV), Emergent BioSolutions Inc, Factories and Manufacturing, Johnson & Johnson, United States Politics and Government, Vaccination and Immunization 0 With supplies from Johnson & Johnson set to fall 86 percent, a White House official warned that the vaccine would be scarce until a troubled Baltimore plant gains regulatory approval.