Heterogeneity of the efficacy of the 23-valent pneumococcal polysaccharide vaccine caused by various underlying conditions of chronic pulmonary disease in older patients: prospective cohort study
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CC-BY-4.0
Abstract
Objective: To determine the ideal conditions for use ofthe 23-valent pneumococcal polysaccharide vaccine(PPV23) in older outpatients with chronic pulmonarydiseases. Design: Prospective cohort study.Participants: 1378 outpatients with chronicpulmonary diseases $60 years of age.Intervention: Participants were educated
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- europepmc
- last seen: 2026-05-19T01:45:01.086888+00:00
- unpaywall
- last seen: 2026-05-29T02:00:03.542394+00:00
License: CC-BY-4.0