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Related Concept Videos

Primary Healthcare Services01:30

Primary Healthcare Services

1.9K
Primary care promotes wellness and prevents disease. This care includes health promotion, education, protection (such as immunizations), early disease screening, and environmental considerations. Settings providing this type of healthcare include physician offices, public health clinics, school nursing, and community health nursing.
In 1978, international leaders convened in Alma-Ata, Kazakhstan, for what would be a pivotal event in global health. The Alma-Ata Declaration was the first to call...
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Levels of Health Promotion and Illness Prevention01:26

Levels of Health Promotion and Illness Prevention

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Health promotion allows a person to control the determinants of health, resulting in an improved health status. It enhances the quality of life and reduces premature deaths. Health promotion and illness prevention programs help people make beneficial choices to reduce the risk of disease and disabilities. There are three health promotion and illness prevention levels: primary, secondary, and tertiary prevention.
In primary prevention, actions taken before disease onset prevent the disease from...
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Preventive Healthcare Services01:30

Preventive Healthcare Services

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Preventive healthcare services keep people healthy via frequent check-ups, screening, and counseling. They primarily aid in disease prevention rather than treating an acute or chronic illness. Preventive treatment also keeps individuals productive and energetic, allowing them to work well into their retirement years. Examples of preventive care services include:
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Principles of Disease Surveillance01:26

Principles of Disease Surveillance

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Disease surveillance is the systematic collection, analysis, and interpretation of health data essential to the planning, implementation, and evaluation of public health practice. This process integrates data dissemination to entities responsible for preventing and controlling disease, injury, and disability. Surveillance systems provide crucial information for action, helping public health authorities make informed decisions to manage and prevent outbreaks, ensure public safety, optimize...
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Healthcare Agencies II01:17

Healthcare Agencies II

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There are various healthcare agencies in the United States—some of which are managed by religious institutions and others by different government branches.
Parish nursing is a growing specialty nursing profession that focuses on holistic healthcare, health promotion, and illness prevention. It blends professional nursing practice with a health ministry, focusing on health and healing within the context of a Christian community. Parish nurses serve as health educators, referral sources,...
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Methods Of Healthcare Delivery System01:26

Methods Of Healthcare Delivery System

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At the different levels of the healthcare system, we see varying methods of healthcare used. These methods include managed care systems, case management, and primary healthcare.
Managed Care System:
The managed care system is designed to control the cost while maintaining the quality of care. The patient's care from admission to discharge is planned by the primary care provider or the case manager, also known as the gatekeeper. In a managed care system, the number of care providers is...
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Related Experiment Video

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Determining Soil-transmitted Helminth Infection Status and Physical Fitness of School-aged Children
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Public Health.

Stephen Tollman1,

  • 1University of the Witwatersrand, Johannesburg, xx, South Africa.

Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association
|December 23, 2025
PubMed
Summary

Alzheimer

Area of Science:

  • Global Health
  • Epidemiology
  • Gerontology

Background:

  • Rural Africa faces rapid health and social transitions, including increased life expectancy and multimorbidity.
  • Awareness and understanding of Alzheimer's Disease and Related Dementias (ADRD) are critically low in these regions.
  • There is a pressing need for data to inform effective, community-sensitive responses to ADRD.

Purpose of the Study:

  • To highlight the importance of population-based cohorts for generating data on ADRD in transitioning African populations.
  • To share findings from the Health and Aging in Africa: longitudinal studies (HAALSI) cohort in South Africa.
  • To demonstrate the value of longitudinal platforms for understanding cognitive health and aging.

Main Methods:

  • Utilizing data from the HAALSI cohort, nested within the Agincourt Health and Socio-Demographic Surveillance System (HDSS).

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  • Analyzing a whole population cohort of approximately 120,000 individuals across 31 communities.
  • Employing longitudinal study designs to track cognitive trajectories, mortality, and risk factors.

    • Main Results:

    • Presenting insights into dementia prevalence and cognitive trajectories in a rural South African population.
    • Identifying behavioral and social drivers of cognitive change.
    • Examining mortality transitions, causes of death, and community responses in the context of HIV and cardiometabolic risk.

    Conclusions:

    • Longitudinal population-based platforms like HAALSI are crucial for generating evidence on ADRD in rapidly changing African contexts.
    • Findings underscore the potential for preventive interventions targeting cognitive health across the life course.
    • Community-responsive platforms are essential for effective research, intervention evaluation, and public engagement on aging and dementia.