Hepatitis E: an emerging infectious disease in Germany?

Area of Science:

• Hepatology
• Infectious Diseases
• Epidemiology

Background:

• Hepatitis E virus (HEV) infections are increasingly reported globally.
• Improved diagnostics and heightened clinical awareness may influence reported infection rates.
• Understanding the true incidence of HEV is crucial for public health strategies.

Purpose of the Study:

• To investigate the reasons behind the reported increase in Hepatitis E virus infections in industrialized nations.
• To differentiate between actual incidence and detection rates of HEV.
• To analyze trends in HEV seroprevalence and reported cases in Germany.

Main Methods:

• Retrospective analysis of reported HEV infection data.
• Comparison of reported case frequencies with seroprevalence studies over time.
• Utilizing German national health data for epidemiological assessment.

Main Results:

• Reported HEV infections in Germany increased over six-fold in recent years.
• HEV seroprevalence in the German population remained stable at 2% during the same period.
• The discrepancy suggests enhanced case detection rather than a true rise in infection incidence.

Conclusions:

• The observed increase in reported HEV infections is likely attributable to enhanced disease awareness and diagnostics.
• HEV incidence has not significantly changed, despite a rise in diagnosed cases.
• Public health policies should focus on accurate diagnostics and surveillance rather than solely on reported case numbers.