Seroprevalence of hepatitis E virus among different age groups in Tehran, Iran

Hepatitis E virus (HEV) is considered to be a public health problem on a global scale, especially in developing countries. This study aims to investigate the seroprevalence of HEV in the Tehrani population. This descriptive-analytical study was carried out between the years 2017 and 2018 in Tehran, Iran. A total of 493 individuals whose blood samples and demographic data were collected via questionnaires through random cluster sampling were selected. To determine the presence of specific IgG antibody against HEV, commercial kits were used through ELISA. Chi-squared tests, logistic regression and t test were also required to conduct the statistical analysis. Of the 493 participants, with a mean age of 40.98 ± 17.10 years, included in this study, 180 were men and 313 were women. Of these, 48 (9.7%) had IgG antibodies against HEV. No significant difference was observed between the sexes (or different age groups) and positive antibody. It has been reported that the prevalence rate of this infection is high in Tehran, which is indicative of the endemic nature of this infection in society. The results of this study are similar to those obtained from the east of Golestan province, Iran but different from those obtained from Isfahan province, Iran. As a high percentage of people are susceptible to the infection in society, it is likely to have the prevalence of an epidemic.