Sero-molecular Epidemiology of Hepatitis E Virus in Blood Donors, Gezira State, Sudan: A Cross-sectional Study
Abstract
Background: Hepatitis E virus (HEV) is a hepatotropic pathogen that causes significant
morbidity and mortality in humans. It is an important causative agent of viral hepatitis
outbreaks. This study investigates the serological and molecular prevalence of HEV
in blood donors attending the Central Blood Bank in Wad Medani City in Gezira State,
Sudan.
Methods: The study adopted a cross-sectional descriptive design. A structured
questionnaire was used to collect data concerning demographic information and risk
factors associated with HEV transmission. All enrolled participants (N = 300) were
screened for HEV IgG antibodies using commercial ELISA kits, then strong positive
samples (N = 84) were selected and rescreened for HEV IgM and HEV RNA by RT
PCR. SPSS version 24.0 was used for analysis.
Results: Out of 300 male participants, 36.3% (109/300) were positive for HEV IgG.
However, only one participant was IgM positive, while the HEV RNA was negative.
The highest prevalence rates of the virus were 42 (44.6%) among the age group
of 31–40 years, 20 (48.8%) in those who consumed food from outside, 13 (50%) in
three to four multiple blood donations, and 5 (62.5%) in those who consumed water
from the river source. A significant association of HEV IgG prevalence concerning the
occupation of the participants being students or farmers was detected using univariate
and multivariate analysis (P-value = 0.007).
Conclusion: High prevalence of HEV IgG was demonstrated among the healthy
blood donors in this study. Given the possibility of HEV transmission by transfusion
from donors to recipients, we recommend that routine screening for HEV should
be adopted by blood banks in Sudan.
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