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Aging and Disease    2012, Vol. 3 Issue (1) : 68-90     DOI:
Immunosenescence and Challenges of Vaccination against Influenza in the Aging Population
Adrian J. Reber, Tatiana Chirkova, Jin Hyang Kim, Weiping Cao, Renata Biber, David K. Shay, Suryaprakash Sambhara
Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, 1600 Clifton Road, Atlanta, GA 30329, USA
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Influenza is an important contributor to morbidity and mortality worldwide. Accumulation of genetic mutations termed antigenic drift, allows influenza viruses to inflict yearly epidemics that may result in 250,000 to 500,000 deaths annually. Over 90% of influenza-related deaths occur in the older adult population. This is at least in part a result of increasing dysregulation of the immune system with age, termed immunosenescence. This dysregulation results in reduced capacity to cope with infections and decreased responsiveness to vaccination. The older adult population is in dire need of improved vaccines capable of eliciting protective responses in the face of a waning immune system. This review focuses on the status of immunity, responses to influenza vaccination, and strategies that are currently being explored to elicit enhanced immune responses in this high risk population.

Keywords Aging      Influenza      Vaccination      Immune Response      Immunosenescence     
Corresponding Authors: Suryaprakash Sambhara   
Issue Date: 01 January 2012
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Adrian J. Reber
Tatiana Chirkova
Jin Hyang Kim
Weiping Cao
Renata Biber
David K. Shay
Suryaprakash Sambhara
Cite this article:   
Adrian J. Reber,Tatiana Chirkova,Jin Hyang Kim, et al. Immunosenescence and Challenges of Vaccination against Influenza in the Aging Population[J]. Aging and Disease, 2012, 3(1): 68-90.
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