Workers at a Baltimore plant responsible for producing two separate coronavirus vaccines mistakenly mixed up their respective ingredients, ruining approximately 15 million doses of Johnson & Johnson’s vaccine and pausing all production at the plant, the company confirmed Wednesday.
The facility, run by Emergent BioSolutions, had partnered with both Johnson & Johnson and AstraZeneca to produce vaccines. Federal officials said that the mistake was a result of human error, according to The New York Times, which first reported the mix up that reportedly occurred several weeks ago.
A quality control review “identified one batch of drug substance that did not meet quality standards at Emergent BioSolutions, a site not yet authorized to manufacture drug substance for our COVID-19 vaccine,” Johnson & Johnson said in a statement. “This batch was never advanced to the filling and finishing stages of our manufacturing process.”
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