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Related Concept Videos

Vaccinations01:51

Vaccinations

Overview
Vaccines01:21

Vaccines

Vaccines are among the most effective tools in preventive medicine, designed to prepare the immune system to recognize and combat infectious agents. By introducing antigens—substances that the immune system identifies as foreign—vaccines stimulate an adaptive immune response that leads to immunological memory. This immunological memory enables the body to mount a faster and more effective response upon future exposures to the actual pathogen.Vaccines can be categorized based on the type of...
Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
Cancer Vaccines01:30

Cancer Vaccines

Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
Aging01:26

Aging

Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...

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Updated: May 19, 2026

Fabrication of Pulsatile Polymeric Microparticles Encapsulating Rabies Antigen
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Published on: May 12, 2023

Vaccines for the elderly.

B Weinberger1, B Grubeck-Loebenstein

  • 1Institute for Biomedical Aging Research, Austrian Academy of Sciences, Innsbruck, Austria.

Clinical Microbiology and Infection : the Official Publication of the European Society of Clinical Microbiology and Infectious Diseases
|August 7, 2012
PubMed
Summary
This summary is machine-generated.

Vaccines are less effective in the elderly due to immune system changes. Novel vaccine strategies are needed to improve protection against infectious diseases in older adults.

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Area of Science:

  • Gerontology
  • Immunology
  • Vaccinology

Background:

  • Elderly individuals are more susceptible to infections, making them a key vaccination target group.
  • Age-related immune system decline reduces vaccine efficacy in older adults.
  • Recommended vaccines for the elderly include influenza, Streptococcus pneumoniae, and varicella zoster virus.

Purpose of the Study:

  • To review the challenges and advancements in vaccinating the elderly.
  • To highlight the need for improved vaccine strategies in older populations.
  • To explore novel approaches for enhancing vaccine immunogenicity and efficacy in the elderly.

Main Methods:

  • Review of current vaccination recommendations and strategies for the elderly.
  • Discussion of age-related changes in immune function affecting vaccine response.
  • Exploration of emerging vaccine technologies and adjuvants.

Main Results:

  • Standard vaccines show reduced immunogenicity and faster antibody decline in the elderly.
  • Protein-conjugated vaccines and booster immunizations are employed to improve protection.
  • Limited data exists on the immunogenicity and efficacy of travel vaccines in this demographic.

Conclusions:

  • Despite progress, vaccine effectiveness in the elderly remains an area for improvement.
  • Novel approaches like viral vectors, DNA vaccines, and TLR agonists show promise.
  • Optimizing vaccination strategies is crucial for protecting the aging population against infectious diseases.