View : 711 Download: 0
Functional immune responses to twelve serotypes after immunization with a 23-valent pneumococcal polysaccharide vaccine in older adults
- Title
- Functional immune responses to twelve serotypes after immunization with a 23-valent pneumococcal polysaccharide vaccine in older adults
- Authors
- Ahn, Jong Gyun; Kim, Han Wool; Choi, Hee Jung; Lee, Jin Hwa; Kim, Kyung-Hyo
- Ewha Authors
- 김경효; 이진화; 최희정; 김한울; 안종균
- SCOPUS Author ID
- 김경효; 이진화; 최희정; 김한울; 안종균
- Issue Date
- 2015
- Journal Title
- VACCINE
- ISSN
- 0264-410X
1873-2518
- Citation
- VACCINE vol. 33, no. 38, pp. 4770 - 4775
- Keywords
- Pneumococcal polysaccharide vaccine; Immunogenicity; Opsonin; Phagocytosis; Elderly
- Publisher
- ELSEVIER SCI LTD
- Indexed
- SCI; SCIE; SCOPUS
- Document Type
- Article
- Abstract
- Background: The 23-valent pneumococcal polysaccharide vaccine (PPSV23) was introduced as part of the national immunization program for the elderly (>= 65 years of age) in Korea on 2013. To evaluate immune responses in this population, serotype-specific anti-pneumococcal antibodies were studied with opsonophagocytic assay (OPA). Methods: Pneumococcal vaccine-naive participants >= 65 years of age were enrolled. They were divided into two groups according to their age: 30 in (65-74 years) and 32 in group (>= 75 years). The functional antibody response was determined by multiplexed OPA (MOPA) for 12 serotypes (1, 3, 4, 5, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F) before and 4 weeks after vaccination with PPSV23. Results: Geometric mean titers (GMTs) to all tested serotypes significantly increased in both groups after vaccination compared to those before vaccination. There were no significant differences in either the fold rise (post-vaccination to pre-vaccination) or the percentage of participants with a >= 4-fold increase in OPA titers between two groups for any of the 12 serotypes. Following vaccination, GMT for serotype 9V was higher in group 1 than in group 2 (P=0.011). Conclusions: PPSV23 induces functional immune response for 12 vaccine serotypes in both age groups. Further analysis is needed for the remaining 11 serotypes in the PPSV23, in order to develop a better understanding of the immune responses induced by PPV23 in older adults. (C) 2015 Elsevier Ltd. All rights reserved.
- DOI
- 10.1016/j.vaccine.2015.08.002
- Appears in Collections:
- 의과대학 > 의학과 > Journal papers
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML