What happened Shares of Emergent BioSolutions (NYSE: EBS) were tumbling 9.9% lower as of noon EDT on Monday. The big drop came after the company revealed in a filing to the U.S. Securities and Exchange Commission (SEC) that it has agreed not to make any new material at its Bayview facility in Baltimore, Maryland, at the request of the U.S. Food and Drug Administration (FDA). This facility had previously produced COVID-19 vaccines for both AstraZeneca (NASDAQ: AZN) and Johnson & Johnson (NYSE: JNJ). So what Emergent BioSolutions continues to reel from manufacturing issues at its Bayview facility that caused 15 million doses of Johnson & Johnson's COVID-19 vaccine to be discarded. The New York Times reported in late March that the company's staff had inadvertently contaminated a batch of J&J's vaccine with ingredients from AstraZeneca's COVID-19 vaccine. Image source: Getty Images. That highly publicized glitch led Johnson & Johnson to step in and temporarily manage the production of its vaccine at Emergent BioSolutions' Bayview facility. However, today's news means that J&J's efforts were short-lived. Every aspect of this story is bad news for Emergent BioSolutions. The company has been regarded as a top contract manufacturer for drugs and vaccines in the past. The repercussions from the COVID-19 vaccine debacle at its Baltimore facility, though, could be long-lasting if customers opt to turn to other contract manufacturers in the future. Now what It remains to be seen how quickly Emergent BioSolutions will be able to move past the dark cloud hovering over it and for the healthcare stock to rebound. One important step will be to get the Bayview facility operational again. The FDA is continuing its inspection of the facility but hasn't yet announced when its review will be complete. 10 stocks we like better than Emergent BioSolutionsWhen investing geniuses David and Tom Gardner have a stock tip, it can pay to listen. After all, the newsletter they have run for over a decade, Motley Fool Stock Advisor, has tripled the market.* David and Tom just revealed what they believe are the ten best stocks for investors to buy right now... and Emergent BioSolutions wasn't one of them! That's right -- they think these 10 stocks are even better buys. See the 10 stocks *Stock Advisor returns as of February 24, 2021 Keith Speights has no position in any of the stocks mentioned. The Motley Fool owns shares of and recommends Emergent BioSolutions. The Motley Fool recommends Johnson & Johnson. The Motley Fool has a disclosure policy.Source