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Related Concept Videos

Diseases of the Liver and Gallbladder01:26

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Liver and gallbladder diseases are a significant health concern, with prominent conditions including cirrhosis, hepatitis, non-alcoholic fatty liver disease (NAFLD), and gallstones. Jaundice is a common manifestation of liver and biliary disease.
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In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess...
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A Cell Culture Model for Producing High Titer Hepatitis E Virus Stocks
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Hepatitis A.

Robert C Langan1, Andrew J Goodbred2

  • 1St. Luke's Family Medicine Residency Program, Sacred Heart Campus, Allentown, PA, USA.

American Family Physician
|October 15, 2021
PubMed
Summary
This summary is machine-generated.

Hepatitis A is a viral infection spread through contaminated food or water. Vaccination significantly reduced cases, but outbreaks in unvaccinated groups are increasing, highlighting the need for immunization.

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Area of Science:

  • Hepatology
  • Infectious Diseases
  • Vaccinology

Background:

  • Hepatitis A is a global viral illness transmitted via the fecal-oral route.
  • Widespread vaccination in the U.S. initially decreased incidence by over 90%.
  • Recent increases in cases are linked to community outbreaks among unvaccinated populations.

Purpose of the Study:

  • To summarize the epidemiology, clinical presentation, diagnosis, and management of Hepatitis A.
  • To emphasize the importance of vaccination for prevention and control.
  • To identify high-risk groups for targeted immunization strategies.

Main Methods:

  • Review of existing literature on Hepatitis A epidemiology and clinical features.
  • Analysis of vaccination impact on disease incidence.
  • Identification of diagnostic criteria and treatment recommendations.

Main Results:

  • Hepatitis A symptoms include fever, jaundice, and malaise, with peak infectiousness before and shortly after jaundice onset.
  • Diagnosis relies on detecting immunoglobulin M anti-hepatitis A antibodies.
  • The disease is typically self-limiting, without chronic complications.

Conclusions:

  • Routine childhood immunization (12-23 months) is recommended.
  • Immunization is crucial for high-risk groups, including travelers, illicit drug users, and individuals with chronic liver disease or HIV.
  • Vaccine or immune globulin is recommended for pre- and post-exposure prophylaxis.