Xylitol BSI Multisite - Reduction of Bloodstream Infections From Oral Organisms in Pediatric Stem Cell Transplant

Patients will be randomized to receive either twice-daily intraoral grape-flavored xylitol-wipe (intervention arm) or grape-flavored saline wipe (control arm) application in addition to the current standard of care (SOC). The purpose of this study is to determine whether xylitol wipes are effective at reducing bloodstream infections (BSIs), dental plaque, mucositis (redness and ulcers in the mouth), or gingivitis in patients who undergo allogeneic stem cell transplant (SCT).