{"title":"Detection of Respiratory Viruses Other Than SARS-CoV-2 in a Large Hospital Laboratory in Rome, Italy, During the Seasons 2016–2017 to 2022–2023","authors":"Flora Marzia Liotti, Simona Marchetti, Sara D'Onghia, Maurizio Sanguinetti, Rosaria Santangelo, Brunella Posteraro","doi":"10.1111/irv.70079","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Background and Objective</h3>\n \n <p>Respiratory viruses are major contributors to morbidity and mortality worldwide, with their circulation influenced by seasonal patterns and pandemic-related interventions. This study analyzed detection trends of non-SARS-CoV-2 respiratory viruses in a large Italian hospital over a 7-year period, focusing on variations across COVID-19–related periods and patient age groups.</p>\n </section>\n \n <section>\n \n <h3> Methods</h3>\n \n <p>We retrospectively analyzed multiplex PCR-based laboratory results of 8836 nasopharyngeal samples collected between September 2016 and August 2023. Viral detection rates were stratified by season, COVID-19–related periods (pre-pandemic, pandemic, post-pandemic), and age groups.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>Of the 8836 nasopharyngeal samples analyzed, 2795 (31.6%) tested positive for at least one respiratory virus. Rhinovirus/enterovirus (RV/EV) was the most frequently detected virus (37.6%), followed by influenza A virus (IAV, 17.9%) and respiratory syncytial virus (RSV, 17.2%). The 2020–2021 season had the lowest positivity rate (<i>p</i> < 0.001), with marked declines in IAV and RSV detections, likely because of COVID-19 mitigation measures. Conversely, detections of RV/EV and human coronaviruses increased. Postpandemic data suggested a return to prepandemic patterns, though overall positivity rates remained altered. Age-stratified analysis revealed RSV predominance in infants (<i>p</i> < 0.001), emphasizing its clinical relevance in pediatric populations.</p>\n </section>\n \n <section>\n \n <h3> Conclusions</h3>\n \n <p>Our findings highlight the dynamic nature of respiratory virus epidemiology and the persistent impact of the COVID-19 pandemic on viral circulation. Continuous surveillance and adaptive public health strategies are essential for managing future outbreaks and mitigating the burden of respiratory viral infections.</p>\n </section>\n </div>","PeriodicalId":13544,"journal":{"name":"Influenza and Other Respiratory Viruses","volume":"19 2","pages":""},"PeriodicalIF":4.2000,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/irv.70079","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Influenza and Other Respiratory Viruses","FirstCategoryId":"3","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/irv.70079","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"INFECTIOUS DISEASES","Score":null,"Total":0}
引用次数: 0
Abstract
Background and Objective
Respiratory viruses are major contributors to morbidity and mortality worldwide, with their circulation influenced by seasonal patterns and pandemic-related interventions. This study analyzed detection trends of non-SARS-CoV-2 respiratory viruses in a large Italian hospital over a 7-year period, focusing on variations across COVID-19–related periods and patient age groups.
Methods
We retrospectively analyzed multiplex PCR-based laboratory results of 8836 nasopharyngeal samples collected between September 2016 and August 2023. Viral detection rates were stratified by season, COVID-19–related periods (pre-pandemic, pandemic, post-pandemic), and age groups.
Results
Of the 8836 nasopharyngeal samples analyzed, 2795 (31.6%) tested positive for at least one respiratory virus. Rhinovirus/enterovirus (RV/EV) was the most frequently detected virus (37.6%), followed by influenza A virus (IAV, 17.9%) and respiratory syncytial virus (RSV, 17.2%). The 2020–2021 season had the lowest positivity rate (p < 0.001), with marked declines in IAV and RSV detections, likely because of COVID-19 mitigation measures. Conversely, detections of RV/EV and human coronaviruses increased. Postpandemic data suggested a return to prepandemic patterns, though overall positivity rates remained altered. Age-stratified analysis revealed RSV predominance in infants (p < 0.001), emphasizing its clinical relevance in pediatric populations.
Conclusions
Our findings highlight the dynamic nature of respiratory virus epidemiology and the persistent impact of the COVID-19 pandemic on viral circulation. Continuous surveillance and adaptive public health strategies are essential for managing future outbreaks and mitigating the burden of respiratory viral infections.
期刊介绍:
Influenza and Other Respiratory Viruses is the official journal of the International Society of Influenza and Other Respiratory Virus Diseases - an independent scientific professional society - dedicated to promoting the prevention, detection, treatment, and control of influenza and other respiratory virus diseases.
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