A weekly report published by the Centers for Disease Control and Prevention said that patients could be at a risk of contracting hospital infections due to the use of single dose vaccines or vials in two or more patients.
The Morbidity and Mortality Weekly Report revealed that health officials are investigating at least 10 cases of patients in Arizona and Delaware who were infected after hospital staff used single-dose vials for more than one patient.
The report added that a shortage of available medication could be the reason for the staff to reuse the same vial in other patients.
"Investigations confirmed that the three MRSA-infected patients received pain injections on the same day, along with 25 other patients. Two MRSA-infected patients received epidural steroid injections. Ten people, including the MRSA-infected patients, received contrast injections for radiologic imaging to guide medication needle placement", the report said.