 a cluster of gram negative bloodstream infections in connecticut hemodialysis patients associated with contaminated wall boxes and prime buckets in this article a cluster of delftia acidovorans infections among patients undergoing hemodialysis at an outpatient unit facility a were investigated the cluster of d acidovorans infections was most likely due to indirect exposures to contaminated wall boxes and possibly saline prime buckets due to poor hand hygiene and station disinfection 