{"title":"Serotype 3 pneumococcal pleural empyema: a case report and review of the epidemiology.","authors":"Maja Thoustrup Legardt Johansen, Frederikke Kristensen Lomholt, Jens-Ulrik Stæhr Jensen, Zitta Barrella Harboe","doi":"10.1080/20018525.2025.2546685","DOIUrl":null,"url":null,"abstract":"<p><p>Serotype 3 pneumococcal infection can cause severe invasive disease, even in immunocompetent adults, and is potentially preventable by vaccination. Invasive pneumococcal disease caused by serotype 3 is currently the most frequent serotype found in adults in Denmark. In this report, we present a 62-year-old immunocompetent man diagnosed with a severe pleural empyema caused by serotype 3, requiring a long course of antibiotics. The patient experienced clinical improvement, and follow-up imaging showed near-complete resolution of lung infiltrates. We also review the epidemiology of serotype 3 invasive pneumococcal disease in adults in Denmark and discuss the challenges related to serotype 3 and effective vaccines.</p>","PeriodicalId":11872,"journal":{"name":"European Clinical Respiratory Journal","volume":"12 1","pages":"2546685"},"PeriodicalIF":1.4000,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12392429/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"European Clinical Respiratory Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/20018525.2025.2546685","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/1 0:00:00","PubModel":"eCollection","JCR":"Q3","JCRName":"RESPIRATORY SYSTEM","Score":null,"Total":0}
引用次数: 0
Abstract
Serotype 3 pneumococcal infection can cause severe invasive disease, even in immunocompetent adults, and is potentially preventable by vaccination. Invasive pneumococcal disease caused by serotype 3 is currently the most frequent serotype found in adults in Denmark. In this report, we present a 62-year-old immunocompetent man diagnosed with a severe pleural empyema caused by serotype 3, requiring a long course of antibiotics. The patient experienced clinical improvement, and follow-up imaging showed near-complete resolution of lung infiltrates. We also review the epidemiology of serotype 3 invasive pneumococcal disease in adults in Denmark and discuss the challenges related to serotype 3 and effective vaccines.
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