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Hepatitis E virus infection.

Nassim Kamar1, Jacques Izopet2, Nicole Pavio3

  • 1Departments of Nephrology and Organ Transplantation, CHU Rangueil, INSERM U1043, IFR-BMT, Université Paul Sabatier, TSA 50032, 31059 Toulouse Cedex 9, Toulouse, France.

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Summary
This summary is machine-generated.

Hepatitis E virus (HEV) infection is a leading cause of acute viral hepatitis globally. While often self-limiting, it can cause chronic illness and extrahepatic issues, particularly in immunocompromised individuals.

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Area of Science:

  • Hepatology
  • Virology
  • Infectious Diseases

Background:

  • Hepatitis E virus (HEV) is the most common cause of acute viral hepatitis worldwide.
  • HEV genotypes 1 and 2 primarily affect humans, while genotypes 3 and 4 are zoonotic.
  • HEV is increasingly recognized as endemic in developed regions, with transmission via zoonotic sources or blood products.

Purpose of the Study:

  • To summarize the epidemiology, transmission, diagnosis, and management of Hepatitis E virus (HEV) infections.
  • To highlight the evolving understanding of HEV as an endemic pathogen in developed countries.
  • To discuss clinical manifestations and treatment strategies for HEV.

Main Methods:

  • Review of current literature on HEV epidemiology, clinical features, and diagnostics.
  • Analysis of transmission routes including waterborne, zoonotic, and transfusion-related.
  • Summary of diagnostic methods: antibody detection, HEV RNA, and viral antigen testing.

Main Results:

  • HEV causes acute and chronic hepatitis, with potential neurological and renal extrahepatic manifestations.
  • Zoonotic transmission (HEV genotypes 3 and 4) is significant in developed countries.
  • Chronic HEV infection can occur in immunocompromised individuals, requiring specific management.

Conclusions:

  • HEV infection poses a significant global health burden, with diverse clinical presentations.
  • Early diagnosis and appropriate management are crucial, especially for immunocompromised patients.
  • While a vaccine exists, its use is limited, underscoring the need for continued research and public health strategies.