Brote nosocomial por Listeria monocytogenes en una Unidad de Neonatos

Introduction: Description of an outbreak of Listeria monocytogenes in a neonatal intensive care unit. Methods: A questionnaire, environmental investigation and molecular study were performed. Results: We identified a nosocomial outbreak of L. monocytogenes, confirmed by the genetic study, in a neonatal intensive care unit. Three infants were affected. Although the transmission mechanism could not be elucidated, cross-infection was strongly suggested. Conclusion: Adherence to universal hygiene standards is necessary to avoid nosocomial outbreaks. © 2011 Elsevier Espa ˜