Despite decrease in morbidity and mortality from invasive pneumococcal disease (IPD), individuals with asplenia remain at risk for IPD compared to the general population. This report describes a young adult with hemoglobin SD and documented splenic autoinfarction with pneumococcal sepsis, meningitis, and pneumonia within seven months of immunization with PPSV-23.
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http://dx.doi.org/10.1002/ccr3.276 | DOI Listing |
NPJ Vaccines
December 2024
Department for Evidence-based Medicine and Evaluation, University for Continuing Education Krems (Danube University Krems), Krems, Austria.
Pneumococcal infections are a serious health issue associated with increased morbidity and mortality. This systematic review evaluated the efficacy, effectiveness, immunogenicity, and safety of the pneumococcal conjugate vaccine (PCV)15 compared to other pneumococcal vaccines or no vaccination in children and adults. We identified 20 randomized controlled trials (RCTs).
View Article and Find Full Text PDFOrv Hetil
December 2024
3 Semmelweis Egyetem, Általános Orvostudományi Kar, Belgyógyászati és Hematológiai Klinika, Infektológiai Tanszéki Csoport Budapest Magyarország.
J Med Econ
December 2025
Merck & Co., Inc, Rahway, NJ, USA.
Introduction: This study analyzed the health and economic impact of the 21-valent pneumococcal conjugate vaccine (V116) and the 20-valent pneumococcal conjugate vaccine (PCV20), as well as their relative cost-effectiveness, in Japanese adults aged 65 years using a delta pricing approach.
Methods: A Markov model was employed to simulate the movement of the Japanese population among four health states: healthy, pneumococcal disease (consisting of invasive pneumococcal disease [IPD] with or without meningitis and non-bacteremic pneumococcal pneumonia [NBPP]), post-meningitis sequelae, and death. The model was populated with publicly available demographic and epidemiologic data, stratified by risk level.
NPJ Vaccines
December 2024
Grupo Integrado de Pesquisa em Biomarcadores, Instituto René Rachou-Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brasil.
Streptococcus pneumoniae and influenza A virus (IAV) are significant agents of pneumonia cases and severe respiratory infections globally. Secondary bacterial infections, particularly by Streptococcus pneumoniae, are common in IAV-infected individuals, leading to critical outcomes. Despite reducing mortality, pneumococcal vaccines have high production costs and are serotype specific.
View Article and Find Full Text PDFExpert Rev Vaccines
December 2025
China Center for Health Development Studies, Peking University, Beijing, China.
Background: The burden of pneumococcal disease varies regionally in China, disproportionately affecting children in many provinces such as Qinghai and Hainan. Nevertheless, the absence of a pneumococcal conjugate vaccine (PCV) in the National Immunization Program (NIP) or local programs presents limited coverage. This study evaluated the health and economic impact of including PCV in immunization programs in Qinghai and Hainan.
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