“It’s important to note that these wouldn’t be finished doses, just key ingredients ultimately bound for another facility to be put into vials and prepared for distribution,” NPR’s Sydney Lupkin reported.
“The two vaccines use the same technology employing a harmless version of a virus — known as a vector — that is transmitted into cells to make a protein that then stimulates the immune system to produce antibodies.
“Discarding a batch of bulk drug substance, while disappointing, does occasionally happen during vaccine manufacturing, which is a complex and multi-step biological process,” he added. “We continue to manufacture in support of our customers and the U.S. government, and we remain confident in our ability to meet the FDA requirements.”
The site where the mix-up happened is Emergent’s Bayview facility, according to Johnson & Johnson. The Baltimore campus is where Emergent anchors a Center for Innovation in Advanced Development and Manufacturing – one of three such government-backed facilities in the U.S. that are coordinated by HHS.Johnson & Johnson Says Contractor Botched Part Of Vaccine Production : Coronavirus Updates : NPR