The federal government has moved to stop any further risk of contamination at a Baltimore contract vaccine manufacturer where 15 million potential doses of Johnson & Johnson vaccine were spoiled last month, telling rival drugmaker AstraZeneca it must move its production from the plant and find somewhere else to make its vaccine.The federal government has moved to stop any further risk of contamination at a Baltimore contract vaccine manufacturer where 15 million potential doses of Johnson & Johnson vaccine were spoiled last month, telling rival drugmaker AstraZeneca it must move its production from the plant and find somewhere else to make its vaccine.