Johnson & Johnson Takes Over Plant That Botched Vaccine Doses; AstraZeneca Looks For New Site By Ryan Chatelain Nationwide SHARE AstraZeneca is searching for a new manufacturer for its COVID-19 vaccine, part of the fallout after a Baltimore plant spoiled 15 million doses of Johnson & Johnson’s vaccine. What You Need To Know AstraZeneca is searching for a new manufacturer for its COVID-19 vaccine, part of the fallout after a Baltimore plant spoiled 15 million doses of Johnson & Johnson’s vaccine Both vaccines were being manufactured by Emergent BioSolutions, where workers at the plant reportedly mixed up ingredients of the two vaccines Over the weekend, the Department of Health and Human Services put Johnson & Johnson in control of the facility