A Population-based Seroepidemiological Study on Hepatitis E Virus in Iran

Area of Science:

• Epidemiology
• Infectious Diseases
• Public Health

Background:

• Hepatitis E virus (HEV) infection is a significant public health concern, particularly in endemic regions.
• Limited data exists regarding HEV seroprevalence and its associated risk factors within Iran.

Purpose of the Study:

• To determine the seroprevalence of HEV infection in Iran.
• To identify independent predictors of HEV seropositivity in the Iranian population.

Main Methods:

• A population-based serological survey was conducted in Tehran and Golestan Provinces in 2006.
• Stored sera from 1423 subjects were analyzed for anti-HEV antibodies.
• Weighted logistic regression was used to identify significant predictors of HEV seropositivity.

Main Results:

• The overall HEV seroprevalence was 7.4% across the studied provinces.
• Advanced age (OR=1.59) and a history of traditional phlebotomy (OR=2.28) were identified as independent predictors of HEV seropositivity.
• Statistical significance was confirmed with 95% confidence intervals.

Conclusions:

• The study highlights a considerable rate of HEV seroprevalence in Iran, indicating its endemic status.
• Further research into the cost-effectiveness of HEV vaccination strategies for vulnerable populations is recommended.
• Understanding HEV transmission dynamics is crucial for public health interventions.