Effectiveness of the 23-Valent Pneumococcal Polysaccharide Vaccine Among Elderly Adults in Changshu City: A Multilevel Cluster Analysis

Background: Elderly individuals are at high risk for pneumococcal pneumonia, and vaccination is crucial for prevention. This study aims to evaluate the effectiveness of the 23-valent pneumococcal polysaccharide vaccine (PPV23) in elderly individuals aged 65–84 years in Changshu City, identify key ta...

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Principais autores:	Wancheng Zhang, Wenting He, Zhengyuan Zhou, Tingting Xu, Xin Li, Ning Zhang
Formato:	Artigo
Idioma:	Inglês
Publicado em:	MDPI AG 2026-02-01
coleção:	Vaccines
Assuntos:	pneumococcal pneumonia elderly adults PPV23 vaccine effectiveness risk factors multilevel cluster study
Acesso em linha:	https://www.mdpi.com/2076-393X/14/3/223
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