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Published on: December 10, 2013
Respiratory viruses in bronchiolitis and their link to recurrent wheezing and asthma
Jonathan M Mansbach1, Carlos A Camargo
1Department of Medicine, Children's Hospital Boston, Harvard Medical School, Main Clinical Building 9 South, #9157, Boston, MA 02115, USA. jonathan.mansbach@childrens.harvard.edu
Insights
Severe bronchiolitis in infants increases asthma risk. This study explores viral links and vitamin D
Area of Science:
- Pediatric respiratory infections
- Asthma pathogenesis
Background:
- Bronchiolitis is a primary cause of infant hospitalization.
- Hospitalized infants face higher risks of developing childhood asthma.
- Predicting which infants develop asthma post-bronchiolitis remains challenging.
Purpose of the Study:
- Investigate viral etiologies of bronchiolitis.
- Determine if specific viruses predict future wheezing or asthma.
- Examine vitamin D's role in respiratory infections and wheezing.
Main Methods:
- Review of literature on viruses linked to bronchiolitis.
- Analysis of factors contributing to asthma development after bronchiolitis.
- Exploration of vitamin D as a risk factor.
Main Results:
- Certain viruses associated with severe bronchiolitis may predict asthma development.
- Vitamin D emerges as a potential risk factor for respiratory issues.
Conclusions:
- Understanding viral roles in bronchiolitis is key to predicting childhood asthma.
- Vitamin D supplementation may warrant further investigation for prevention.
Abstract:
Bronchiolitis is the leading cause of hospitalization for children younger than 1 year of age and these hospitalized children have an increased risk for developing childhood asthma. It remains unclear, however, which children who have severe bronchiolitis (eg, an episode requiring hospitalization) will develop recurrent wheezing or asthma. Although many environmental and genetic factors may play a role in the pathway from bronchiolitis to asthma, this article focuses on the viruses that have been linked to bronchiolitis and how these viruses may predict or contribute to future wheezing and asthma. The article also discusses vitamin D as an emerging risk factor for respiratory infections and wheezing.
Related Concept Videos
Asthma I: Introduction
Respiratory Syncytial Virus Disease
Asthma-I: Introduction
Asthma-II: Pathophysiology and Classification
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
Microbiota of the Respiratory Tract
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
