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Published on: February 23, 2014
Spectrum of respiratory viruses in children with community-acquired pneumonia
María Luz García-García1, Cristina Calvo, Francisco Pozo
1Pediatrics Department, Severo Ochoa Hospital, Madrid, Spain. marialuzgarcia@terra.es.
Insights
Community-acquired pneumonia (CAP) in children is often caused by viruses like RSV and rhinovirus (RV). This study found RSV most common in infants, while RV predominated in older children hospitalized with CAP.
Area of Science:
- Pediatric Infectious Diseases
- Virology
- Respiratory Medicine
Background:
- Community-acquired pneumonia (CAP) is a major global cause of childhood illness.
- Identifying causative respiratory viruses is crucial for understanding and managing pediatric CAP.
Purpose of the Study:
- To determine the frequency of specific respiratory viruses, including rhinovirus (RV), human metapneumovirus (HMPV), and human bocavirus (HBoV), in hospitalized children with CAP.
- To compare clinical characteristics of single infections caused by RSV, RV, HMPV, and HBoV.
Main Methods:
- A 6-year prospective study of children under 14 years admitted with CAP.
- Analysis of nasopharyngeal aspirates for 16 different respiratory viruses.
- Comparison of clinical data for single viral infections.
Main Results:
- A viral pathogen was identified in 73.4% of 884 children; 30% had viral coinfections.
- Respiratory syncytial virus (RSV) was the most frequent (41.6%), followed by RV (26.2%), HBoV (17.8%), and HMPV (7%).
- Viral detection rates were higher in infants (<18 months) (83%) than older children (67%). RSV was most common in infants, while RV was most common in older children.
Conclusions:
- Respiratory viruses, particularly RSV, RV, HBoV, and HMPV, play a significant role in pediatric CAP requiring hospitalization.
- Findings contribute to understanding the etiologic burden of viral CAP in children.
- Results can inform public health strategies and future research directions.
Background:
Community-acquired pneumonia (CAP) remains a significant cause for childhood morbidity worldwide. We designed a study with the objective of describing the frequency of respiratory viruses, especially rhinovirus (RV), human metapneumovirus (HMPV) and human bocavirus (HBoV) in hospitalized children with CAP.
Methods:
A 6-year prospective study was conducted in children <14 years old admitted to the Pediatrics Department of the Severo Ochoa Hospital (Spain) with CAP. We studied the frequency of 16 respiratory viruses in nasopharyngeal aspirates. Clinical characteristics of respiratory syncytial virus (RSV)-only infections were compared with those of RV, HMPV and HBoV single infections.
Results:
A viral pathogen was identified in 649 (73.4%) of 884 hospitalized children with CAP. Viral coinfections were detected in 30%. The rate of viral detection was significantly greater in infants <18 months (83%) than in older children (67%) (P < 0.001). The most frequently detected virus was RSV with 41.6% of positive patients followed by RV (26.2%), HBoV (17.8%), adenovirus (17.8%), HMPV (7%) and parainfluenza (7%). RSV was the most frequent virus in children <18 months, but RV was most common in the eldest group (P < 0.001). After stratifying by age, we found some significant differences among RSV, RV, HBoV and HMPV-associated infections.
Conclusions:
The high prevalence of viral infections supports the role of respiratory viruses, mainly RSV, RV, HBoV and HMPV in CAP of children requiring hospitalization. These findings help us to understand the etiologic disease burden and to guide research and public health policy.
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