Related Experiment Video
Updated: Aug 12, 2026
06:34
An Optimized Hemagglutination Inhibition (HI) Assay to Quantify Influenza-specific Antibody Titers
Published on: December 1, 2017
Influenza vaccination in old age
1Department of Health Care of the Elderly, Northern General Hospital, Herries Road, Sheffield S5 7AU, UK. b.j.liddle@sheffield.ac.uk
Age and Ageing
|November 16, 2001
Summary
Influenza vaccination significantly reduces deaths and healthcare costs, especially in the elderly. Vaccination programs for healthcare workers also protect vulnerable elderly populations from influenza and pneumonia.
Area of Science:
- Public Health
- Epidemiology
- Vaccinology
Background:
- Influenza causes substantial annual mortality in the UK, disproportionately affecting the elderly.
- Epidemics lead to increased death rates from pneumonia and influenza, particularly in older adults.
- Significant medical and economic burdens are associated with seasonal influenza epidemics.
Purpose of the Study:
- To evaluate the effectiveness of influenza vaccination in reducing morbidity and mortality.
- To assess the safety and efficacy of influenza vaccines in the elderly population.
- To determine the impact of vaccinating healthcare workers on influenza-related deaths among the elderly.
Main Methods:
- Review of data on influenza-related deaths and vaccination strategies in the UK and countries with blanket vaccination policies.
- Analysis of vaccine safety and efficacy studies in elderly individuals.
- Evaluation of vaccination programs targeting healthcare workers with elderly patient contact.
Main Results:
- Countries implementing widespread influenza vaccination have observed significant decreases in illness and death.
- Influenza vaccines are demonstrated to be safe and effective for elderly recipients.
- Vaccinating healthcare workers effectively reduces influenza-induced mortality in the elderly population.
Conclusions:
- Influenza vaccination is a crucial public health intervention for mitigating the impact of influenza epidemics.
- Targeted vaccination of the elderly and healthcare workers is essential for protecting vulnerable populations.
- Widespread vaccination programs offer substantial medical and economic benefits by preventing influenza-related morbidity and mortality.
Related Concept Videos
01:51Vaccinations
Overview
01:30Pneumonia V: Nursing management and Prevention
Nursing management of pneumonia involves promoting airway patency, facilitating rest and conserving energy, encouraging fluid intake, maintaining nutrition, and educating patients.
The nurse must practice strict medical asepsis and adhere to infection control guidelines to minimize healthcare-associated infections.
Enhance airway patency
Position the patient correctly to facilitate drainage of the affected lung segments. Manual or mechanical percussion and vibration can also be employed.
The nurse must practice strict medical asepsis and adhere to infection control guidelines to minimize healthcare-associated infections.
Enhance airway patency
Position the patient correctly to facilitate drainage of the affected lung segments. Manual or mechanical percussion and vibration can also be employed.
01:22Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption
As individuals age, their body's physiology evolves, affecting drug pharmacokinetics. The most apparent changes occur in the gastrointestinal tract, where an increase in gastric pH, a delay in gastric emptying, and a reduction in gastrointestinal motility are observed. Remarkably, these changes do not substantially modify the absorption of orally administered drugs, particularly those absorbed via passive diffusion.Transdermal drug delivery emerges as a highly viable method for older adults due...
01:18Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism
Geriatric patients show significant variation in how their bodies process medications, which can change how effective and safe treatments are. The liver is the primary organ where drug metabolism occurs, involving two main types of chemical reactions: phase I and II. Phase I metabolism is driven by the cytochrome P450 enzyme system, which includes key types such as CYP3A, CYP2D6, and CYP2C9. Research indicates that while aging doesn't notably alter the levels or activity of these enzymes, it...
01:27Pharmacodynamics 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...
01:27Influenza
Influenza is an acute, highly communicable viral disease that affects the respiratory tract and is responsible for seasonal epidemics worldwide. Influenza A is the most prevalent type associated with widespread outbreaks and is subtyped based on two surface glycoproteins: hemagglutinin (H) and neuraminidase (N), as in H1N1. These glycoproteins are essential for viral infectivity, transmission, and immune recognition. Transmission occurs primarily through respiratory droplets and contaminated...