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Shen CF, Chen JL, Su CC, Lin WL, Hsieh ML, Liu CC, Cheng CL. Decrease of Pneumococcal Community-Acquired Pneumonia Hospitalization and Associated Complications in Children after the Implementation of the 13-Valent Pneumococcal Conjugate Vaccine (PCV13) in Taiwan. Vaccines (Basel) 2021; 9:vaccines9091043. [PMID: 34579280 PMCID: PMC8471531 DOI: 10.3390/vaccines9091043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/12/2021] [Accepted: 09/16/2021] [Indexed: 11/16/2022] Open
Abstract
The impact of the 13-valent pneumococcal conjugate vaccine (PCV13) on overall community-acquired pneumonia (CAP) and disease severity still needs thorough evaluation. In this study, we retrieve both pneumococcal CAP (P-CAP) and unspecific CAP (U-CAP) inpatient data from the Taiwan National Health Insurance Database (NHID) between 2005 and 2016. The interrupted time-series (ITS) analysis was performed to compare the incidence trend before and after the implementation of PCV13. After PCV13 implementation, there is a significant decreasing trend of P-CAP hospitalization, especially in children <1 year, 2-5 years, adults aged 19-65 years, 66 years, or older (all p value < 0.05). This corresponds to a 59% reduction in children <1 year, 47% in children aged 2-5 years, 39% in adult aged 19-65 years, and 41% in elderly aged 66 years or older. The intensive care rate (6.8% to 3.9%), severe pneumonia cases (21.7 to 14.5 episodes per 100,000 children-years), and the need for invasive procedures (4.3% to 2.0%) decreased in children aged 2-5 years (p value < 0.0001) with P-CAP. This PCV13 implementation program in Taiwan not only reduced the incidence of P-CAP, but also attenuated disease severity, especially in children aged 2-5 years.
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Affiliation(s)
- Ching-Fen Shen
- Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; (C.-F.S.); (M.-L.H.); (C.-C.L.)
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Ju-Ling Chen
- Department of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; (J.-L.C.); (C.-C.S.); (W.-L.L.)
- School of Pharmacy & Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Chien-Chou Su
- Department of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; (J.-L.C.); (C.-C.S.); (W.-L.L.)
| | - Wen-Liang Lin
- Department of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; (J.-L.C.); (C.-C.S.); (W.-L.L.)
| | - Min-Ling Hsieh
- Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; (C.-F.S.); (M.-L.H.); (C.-C.L.)
| | - Ching-Chun Liu
- Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; (C.-F.S.); (M.-L.H.); (C.-C.L.)
- Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan 70101, Taiwan
| | - Ching-Lan Cheng
- Department of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan; (J.-L.C.); (C.-C.S.); (W.-L.L.)
- School of Pharmacy & Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
- Correspondence: ; Tel.: +886-6-2353535 (ext. 5688)
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