Related Experiment Video
Updated: Apr 22, 2026

An In vitro Model to Study Immune Responses of Human Peripheral Blood Mononuclear Cells to Human Respiratory Syncytial Virus Infection
Published on: December 10, 2013
Central nervous system alterations caused by infection with the human respiratory syncytial virus
Karen Bohmwald1, Janyra A Espinoza, Pablo A González
1Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.
Insights
Human respiratory syncytial virus (hRSV) causes severe infant respiratory illness and hospitalization. Recent findings link hRSV infections to neurological complications and central nervous system (CNS) impairment.
Area of Science:
- Pediatrics
- Virology
- Neurology
Background:
- Human respiratory syncytial virus (hRSV) is a primary cause of infant hospitalization globally due to severe respiratory tract infections like bronchiolitis and pneumonia.
- Despite significant research, effective vaccines or treatments for hRSV remain unavailable, contributing to a substantial global disease burden.
Purpose of the Study:
- To explore recent findings on the neurological and extrapulmonary effects of hRSV infections.
- To discuss the link between hRSV infection and functional impairment of the central nervous system (CNS).
Main Methods:
- Review of recent scientific literature and findings.
- Analysis of reported neurological symptoms associated with hRSV infection.
Main Results:
- hRSV infection presents with varied symptoms, including cough, fever, and severe respiratory distress in infants (e.g., dyspnea, chest retractions).
- Infants under one year may exhibit non-specific symptoms like failure to thrive, apnea, and feeding difficulties, often requiring hospitalization.
- Neurological symptoms associated with hRSV include seizures, central apnea, lethargy, feeding/swallowing issues, muscle tone abnormalities, strabismus, CSF abnormalities, and encephalopathy.
Conclusions:
- hRSV infection can lead to significant neurological complications beyond respiratory illness.
- Understanding the extrapulmonary effects of hRSV is crucial for managing disease burden and developing targeted interventions.
Abstract:
Worldwide, the human respiratory syncytial virus (hRSV) is the leading cause of infant hospitalization because of acute respiratory tract infections, including severe bronchiolitis and pneumonia. Despite intense research, to date there is neither vaccine nor treatment available to control hRSV disease burden globally. After infection, an incubation period of 3-5 days is usually followed by symptoms, such as cough and low-grade fever. However, hRSV infection can also produce a larger variety of symptoms, some of which relate to the individual's age at infection. Indeed, infants can display severe symptoms, such as dyspnea and chest wall retractions. Upon examination, crackles and wheezes are also common features that suggest infection by hRSV. Additionally, infection in infants younger than 1 year is associated with several non-specific symptoms, such as failure to thrive, periodic breathing or apnea, and feeding difficulties that usually require hospitalization. Recently, neurological symptoms have also been associated with hRSV respiratory infection and include seizures, central apnea, lethargy, feeding or swallowing difficulties, abnormalities in muscle tone, strabismus, abnormalities in the CSF, and encephalopathy. Here, we discuss recent findings linking the neurological, extrapulmonary effects of hRSV with infection and functional impairment of the CNS.
Related Concept Videos
Encephalitis ll: Pathophysiology
Viral Meningitis
Cytomegalovirus Disease
Arboviral Encephalitis
Encephalitis l: Introduction
Pneumonia I: Introduction

