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Updated: Jan 18, 2026

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Hepatitis E virus: An emerging public health problem.

María Teresa Pérez-Gracia1, Lara Martínez-Celdrán1, Clara Más-Comes1

  • 1Área de Microbiología, Departamento de Farmacia, Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud, Universidad Cardenal Herrera-CEU, Universidades CEU, Valencia, España.

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PubMed
Summary

Hepatitis E virus (HEV) is a growing global health concern, causing acute viral hepatitis. Evolving research reveals HEV

Keywords:
DiagnosisDiagnósticoEpidemiologyEpidemiologíaHEVHepatitis EHepatitis E virusTratamientoTreatmentVHEVaccineVacunaVirus de la hepatitis EZoonosis

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Area of Science:

  • Hepatology
  • Virology
  • Public Health

Background:

  • Hepatitis E virus (HEV) is a significant cause of acute viral hepatitis globally.
  • Traditionally linked to contaminated water and food in areas with poor sanitation, HEV affects 2 billion people in endemic regions.
  • Recent findings indicate HEV is common and indigenous in developed countries, with a distinct epidemiology.

Purpose of the Study:

  • To highlight the emerging public health challenge posed by Hepatitis E.
  • To discuss the changing epidemiological patterns of HEV infection.
  • To underscore the risk of chronic hepatitis in immunocompromised individuals.

Main Methods:

  • Review of epidemiological data and diagnostic improvements.
  • Analysis of HEV prevalence in different geographical and demographic groups.
  • Identification of risk factors, including animal contact.

Main Results:

  • HEV infection is prevalent in developed countries, often acquired through contact with domestic animals, particularly pigs.
  • HEV poses a risk of chronic hepatitis for transplant recipients and immunocompromised patients.
  • Improved diagnostics reveal a broader spectrum of HEV epidemiology than previously understood.

Conclusions:

  • Hepatitis E is an evolving global health issue with diverse transmission routes.
  • Understanding HEV's changing epidemiology is crucial for public health strategies.
  • Awareness of HEV's potential for chronic infection in vulnerable populations is essential.