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Current Pediatric Reviews

Editor-in-Chief

ISSN (Print): 1573-3963
ISSN (Online): 1875-6336

Review Article

Definition of Opportunistic Infections in Immunocompromised Children on the Basis of Etiologies and Clinical Features: A Summary for Practical Purposes

Author(s): Niccolò Riccardi*, Gioacchino Andrea Rotulo and Elio Castagnola

Volume 15, Issue 4, 2019

Page: [197 - 206] Pages: 10

DOI: 10.2174/1573396315666190617151745

Abstract

Opportunistic Infections (OIs) still remain a major cause of morbidity and death in children with either malignant or nonmalignant disease.

OIs are defined as those infections occurring due to bacteria, fungi, viruses or commensal organisms that normally inhabit the human body and do not cause a disease in healthy people, but become pathogenic when the body's defense system is impaired. OIs can also be represented by unusually severe infections caused by common pathogens. An OI could present itself at the onset of a primary immunodeficiency syndrome as a life-threatening event. More often, OI is a therapyassociated complication in patients needing immunosuppressive treatment, among long-term hospitalised patients or in children who undergo bone marrow or solid organ transplantation.

The aim of the present review is to provide a comprehensive and ‘easy to read’ text that briefly summarises the currently available knowledge about OIs in order to define when an infection should be considered as opportunistic in pediatrics as a result of an underlying congenital or acquired immune-deficit.

Keywords: Opportunistic infections, children, immunocompromised host, etiology, pathogenic, immune-deficit, malignant.

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