An Outbreak ofSerratia marcescensBloodstream Infections Associated With Misuse of Drug Vials in a Surgical Ward

Abstract
We report an outbreak ofSerratia marcescensbloodstream infection due to contamination of total parenteral nutrition solution by insulin or poligeline solution when single-use vials were used for multiple doses in a surgical ward. Four patients had severe sepsis, and no patient died. Multidose vials, used either correctly or incorrectly, may be associated with bloodstream infection.