Abstract
Pneumococcal community-acquired pneumonia (PCAP) and invasive pneumococcal disease (IPD) are important causes of morbidity and mortality in elderly. In the Community-Acquired Pneumonia immunization Trial in Adults (CAPiTA), a randomized double-blind placebo-controlled trial of 84,496 community-dwelling immunocompetent adults over 65 years of age, the 13-valent pneumococcal conjugate vaccine (PCV13) reduced the incidence of first episode of vaccine-type (VT) PCAP with 38 and of VT-IPD with 76% in the modified intention-to-treat population. In The Netherlands, where PCV7 immunization of newborns was introduced in 2007 and replaced by PCV10 in 2011, introduction of PCV13 immunization of elderly--based on 2012 data--would be highly cost effective. However, this is probably different in countries where the VT disease burden has declined more, for instance due to herd effects following child immunization with PCV13. Apart from cost-effectiveness analyses, ethical aspects of PCAP prevention should be taken into account in policy making for pneumococcal vaccination in elderly.
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