Journal
JOURNAL OF THE AMERICAN GERIATRICS SOCIETY
Volume 63, Issue 10, Pages 2094-2098Publisher
WILEY
DOI: 10.1111/jgs.13651
Keywords
geriatrics; retirement; Pneumococcal conjugate vaccine; Pneumococcal polysaccharide vaccine; Streptococcus pneumoniae
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ObjectivesTo evaluate pneumococcal immunization in older adults living in retirement communities and to measure nasopharyngeal carriage of Streptococcus pneumoniae to better assess the potential for herd protection from the 13-valent pneumococcal conjugate vaccine (PCV-13) in these settings. DesignCross-sectional observational study of adults aged 65 and older living in retirement communities to determine coverage with 23-valent pneumococcal vaccine (PPSV-23), coverage with PCV-13 in immuncompromised individuals according to 2012 Advisory Committee on Immunization Practices (ACIP) guidelines, and nasopharyngeal carriage of S. pneumoniae. SettingTwo retirement communities in North Carolina. ParticipantsOlder adults recruited between December 2013 and April 2014 (N = 21, 64.8% female, mean age 81.4). MeasurementsA survey was used to assess chronic illnesses, immunization history, and potential risk factors for pneumococcal carriage; a chart review was used to confirm immunization history and abstract chronic conditions; and a nasopharyngeal swab was collected and cultured for S. pneumoniae. ResultsEighty-seven percent of participants reported receiving PPSV-23 since age 65. Of the 16.2% of participants with an immunocompromising condition, only one had received PCV-13. Nasopharyngeal carriage with S. pneumoniae was detected in 1.9% (95% confidence interval = 0.0-3.8%) of participants. ConclusionIn this select sample, PPSV-23 coverage was high, but adherence to the ACIP recommendation for PCV-13 in immunocompromised groups was low. Nasopharyngeal carriage of S. pneumoniae was present, although infrequent, suggesting that immunization with PCV-13 could provide an individual benefit and a small degree of herd protection.
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