Several patients at Roswell Park Cancer Comprehensive Cancer Center developed infections after a staff member replaced a narcotic drug from the syringes with water and they were injected with the syringes, Dr. Boris Kuvshinoff, chief medical officer at Roswell said Thursday.
"We believe that narcotic was removed from syringes and replaced with water by a single individual who is no longer employed at Roswell Park," Kuvshinoff said.
The hospital did not give any information about the identity or employment title of the "single individual."
No patient deaths resulted from the alleged narcotic swapping and that the patients affected were treated with antibiotics, hospital officials said.
The alleged incidents took place earlier this year, Kuvshinoff said.
"The impact of the opioid crisis in our region has wide-reaching ramifications," Kuvshinoff said. "Because this issue, which was reported by Roswell Park to local, state and federal authorities, is under active investigation, we cannot comment further."
It was not immediately clear which law enforcement and health agencies were investigating the incident.