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Related Concept Videos

Community Based Intervention01:30

Community Based Intervention

Community-based interventions in mental health represent a paradigm shift from institution-centered care to treatments embedded within the fabric of local communities. By prioritizing inclusion and leveraging existing societal structures, this approach fosters a supportive environment conducive to addressing mental health challenges while promoting individual dignity and agency.
Foundations of Community Mental Health Programs
Central to the success of community-based interventions is the...
Preventive Healthcare Services01:30

Preventive Healthcare Services

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:
Levels of Health Promotion and Illness Prevention01:26

Levels of Health Promotion and Illness Prevention

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...
Documentation in Long-Term and Home Healthcare Setting01:29

Documentation in Long-Term and Home Healthcare Setting

Documentation in long-term care facilities and home healthcare settings is crucial for ensuring continuous, coordinated, and comprehensive care for patients. Each setting has its specific documentation processes and tools:
Long-Term Care Facilities
Longitudinal Research02:20

Longitudinal Research

Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
Hepatitis01:25

Hepatitis

Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver. The...

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Related Experiment Videos

From screening to care: a longitudinal implementation evaluation of a community-based hepatitis B program.

Chul S Hyun1,2, Sara Soonsik Kim3

  • 1Department of Medicine, Section of Digestive Diseases, Yale School of Medicine, New Haven, CT, USA. chul.hyun@yale.edu.

BMC Public Health
|June 19, 2026
PubMed
Summary

Community hepatitis B virus (HBV) screening identifies chronic infections but fails to ensure sustained care. Patient navigation and improved access are crucial for completing the HBV prevention pathway in high-risk immigrant populations.

Keywords:
Community-based screeningHealth disparitiesHepatitis BImmigrant healthImplementation scienceLinkage to careRE-AIMSccess to care

Related Experiment Videos

Area of Science:

  • Public Health
  • Infectious Disease Epidemiology
  • Health Services Research

Background:

  • Community-based hepatitis B virus (HBV) screening is vital for high-risk immigrant populations in the US.
  • Current screening methods often lack robust follow-up, hindering progression from diagnosis to sustained clinical management.
  • Limited longitudinal data exists on the real-world implementation of the full HBV care continuum.

Purpose of the Study:

  • To evaluate the implementation of a community-based HBV screening and education program using the RE-AIM framework.
  • To assess reach, operational yield, and attrition across the HBV care continuum in Korean American immigrants.
  • To identify barriers and facilitators to sustained clinical engagement post-diagnosis.

Main Methods:

  • A RE-AIM-based implementation evaluation of a HBV screening program (2009-2016) in Korean American communities.
  • Conducted 152 outreach events with culturally tailored education, serologic testing, and results disclosure.
  • Analyzed prospectively collected data on HBsAg-positive individuals for longitudinal follow-up up to eight years.

Main Results:

  • Screened 8,453 individuals; 204 (2.4%) were HBsAg positive.
  • 121 (59.3%) had follow-up data; 71 (58.7%) accessed clinical care (34.8% of HBsAg-positive).
  • Significant attrition occurred between diagnosis and care linkage; lack of health insurance was a major barrier.

Conclusions:

  • Community-based HBV screening successfully identifies chronic infections but requires enhanced strategies for sustained care.
  • Prevention is implementation-dependent, necessitating ongoing engagement beyond initial screening.
  • Integrating patient navigation, longitudinal follow-up, and accessible care is essential to improve linkage and outcomes.