Minnesota health officials have learned that 129 clinics throughout the state purchased drugs from the Massachusetts firm linked to a deadly national meningitis outbreak.
It's not clear how many patients received drugs made by the company, New England Compounding Center (NECC), which is now under investigation for selling contaminated steroids.
But there are indications that it may involve hundreds more people, at a minimum, in Minnesota alone.
The list of clinics, which was provided by federal investigators, gives state officials the first clear picture of how widely the company's products were used throughout the state.
The Minnesota Department of Health plans to contact each clinic to warn them of "a potential risk of meningitis or other infections," Richard Danila, the deputy state epidemiologist, said Tuesday.
On Monday, the U.S. Food and Drug Administration warned that several of the company's drugs may have been contaminated, not just the batches of injectable steroids implicated in the meningitis outbreak.
Already, Minnesota clinics have begun scouring records for patients who may have been affected.
At Associated Eye Care in Stillwater, for example, officials have identified 559 patients who received NECC products since May, said spokeswoman Elizabeth Bradshaw. She said the clinic used four of the company's medications, including an injectable drug, at its Ambulatory Surgery Center. "We will be notifying all patients," Bradshaw said, and advising them to watch for possible symptoms of infection.