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Open Access Research article

Assessment of vaccine candidates for persons aged 50 and older: a review

Renske Eilers12*, Paul FM Krabbe1, Ted GA van Essen3, Anita Suijkerbuijk4, Alies van Lier2 and Hester E de Melker2

Author Affiliations

1 Department of Epidemiology, University of Groningen, Academic Medical Center Groningen, P.O. Box 30.001, Groningen 9700 RB, The Netherlands

2 Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), P.O. Box 1, Bilthoven 3720 BA, The Netherlands

3 Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, P.O. Box 85500, Utrecht 3508 GA, The Netherlands

4 Center for Prevention and Health Services Research, National Institute for Public Health and the Environment (RIVM), P.O. Box 1, Bilthoven 3720 BA, The Netherlands

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BMC Geriatrics 2013, 13:32  doi:10.1186/1471-2318-13-32

Published: 15 April 2013

Abstract

Background

The increasing life expectancy in most European countries has resulted in growth of the population 50 and older. This population is more susceptible to infectious diseases because of immunosenescence, co-morbidity and general frailty. Thus, to promote healthy aging, vaccination against vaccine-preventable-diseases could be one strategy. In addition to its possible individual benefits, vaccination may also yield social benefits, such as a lower overall cost of healthcare. Most European countries, however, offer only influenza vaccine although vaccines for pneumococcal disease, herpes zoster, pertussis, and hepatitis A are also available. Our aim is to review the knowledge of these vaccines for persons aged 50 and older and explore the arguments for expanding current vaccination programmes beyond just influenza.

Methods

The evaluation model of Kimman et al. was used to assess herpes zoster, pneumococcal disease, pertussis and hepatitis A in terms of four domains: pathogen, vaccine, disease outcomes and cost-effectiveness. The sources were Dutch surveillance systems, seroprevalence studies and the international literature.

Results

Herpes zoster, pneumococcal disease and pertussis are prevalent among persons aged 50 and older. Vaccines vary in effectiveness and have mild and self-limiting side effects. Vaccination against pneumococcal disease and pertussis causes adaptation of the responsible pathogen. For pertussis and hepatitis A, the vaccine is not registered specifically for the elderly population. Vaccination against herpes zoster and pertussis could improve quality of life, while vaccination against pneumococcal disease and hepatitis A prevents mortality. However, only vaccination against herpes zoster and pneumococcal disease appear to be cost-effective.

Conclusions

Vaccination can improve the health of the elderly population. As our review shows, however, the data are too incomplete to accurately judge its potential impact. More research is needed to determine how vaccination can most effectively improve the health of the growing population 50 years and older.

Keywords:
Older persons; Vaccination; Vaccines; Herpes zoster; Pneumococcal disease; Pertussis; Hepatitis A