The serotype-specific prevalence of pneumococci in hospitalized pneumonia patients with COPD: a prospective, multi-center, cohort studyopen access
- Authors
- Kim, Jae Yeol; Jung, Jae-Woo; Kang, Min-Jong; Kim, Deog Kyeom; Choi, Hayoung; Cho, Young-Jae; Jang, Seung Hun; Lee, Chang-Hoon; Oh, Yeon Mok; Park, Ji Sook
- Issue Date
- Sep-2023
- Publisher
- KOREAN ASSOC INTERNAL MEDICINE
- Keywords
- Chronic obstructive pulmonary disease; Pneumonia; Pneumococcus; Serotype; Vaccination
- Citation
- KOREAN JOURNAL OF INTERNAL MEDICINE, v.38, no.5, pp 714 - 724
- Pages
- 11
- Journal Title
- KOREAN JOURNAL OF INTERNAL MEDICINE
- Volume
- 38
- Number
- 5
- Start Page
- 714
- End Page
- 724
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/67738
- DOI
- 10.3904/kjim.2023.152
- ISSN
- 1226-3303
2005-6648
- Abstract
- Background/Aims: The overall incidence of pneumococcal pneumonia is declining. However, the change in the pathogenic distribution of community-acquired pneumonia (CAP) in chronic obstructive pulmonary disease (COPD) patients and the sero-type specificity of Streptococcus pneumoniae have not been evaluated in the post-era of pneumococcal vaccination in Korea.Methods: We conducted a prospective, multi-center, cohort study from seven University-affiliated hospitals. The primary objective was the identification of serotype-specific prevalence of pneumococcal pneumonia in COPD patients hospitalized for CAP. For the purpose, we conducted serotype-specific urine antigen detection (SS-UAD) assays for S. pneumoniae. The secondary objectives were other clinical characteristics of pneumonia including vaccination status.Results: The total number of participants was 349. Most of them were male (95.1%) with old ages (75.55 & PLUSMN; 8.59 y). The positive rate for S. pneumoniae was 9.2% with SS-UAD assay and the common serotypes were 22F, 6A, and 6B. In the sputum, Pseudomonas aeruginosa (5.0%) and Haemophilus influenzae (4.0%) were common pathogens. The vaccination rate was 78.8%, 53.0%, and 25.8% for influenza, pneumococcal polysaccharide vaccine 23 (PPV 23), and pneumococcal protein-conjugated vaccine 13 (PCV 13), respectively. Thirteen patients died during hospitalization (mortality rate; 3.7%). There was no difference in the respective rate of influenza vaccination (79.2% vs. 69.2%, p = 0.288) and PCV 13 vaccination (25.6% vs. 30.8%, p = 0.443) between survivors and the deceased.Conclusions: Serotypes 22F, 6A, and 6B, which are covered either by PPV 23 or by PCV 13, are still common pneumococcal serotypes in COPD pneumonia in the post-vaccination era in Korea.
- Files in This Item
-
- Appears in
Collections - ETC > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/67738)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.