Johnson & Johnson takes over US Covid vaccine factory after 15m doses spoiled 5 Apr, 2021 06:00 AM 2 minutes to read Biopharmaceutical company Emergent BioSolutions, where a mishap spoiled 15m doses of Johnson & Johnson's Covid-19 vaccine. Photo / Getty Images Biopharmaceutical company Emergent BioSolutions, where a mishap spoiled 15m doses of Johnson & Johnson's Covid-19 vaccine. Photo / Getty Images Financial Times By: Gregory Meyer in New York A pharmaceutical plant that was producing ingredients for Covid-19 vaccines developed by both AstraZeneca and Johnson & Johnson will exclusively supply the latter company after a mistake by workers spoiled millions of doses. US-based J&J said it was "assuming full responsibility" at the plant in Baltimore owned by Emergent BioSolutions. UK-based AstraZeneca said it would move Covid-19 vaccine production out of the facility to another location.