Abstract:
Viral hepatitis B represents a real public health problem worldwide, due to its potential 
to lead to serious complications such as  fibrosis, cirrhosis and hepatocellular carcinoma. The 
aim of this study was to estimate the prevalence of hepatitis B virus in the Ghardaïa region, and 
to identify the risk factors associated with its spread. A retrospective study was carried out on 
patient files extracted from the archives of the Direction de la Santé et de la Population and the 
Centre de Transfusion Sanguine de la wilaya de Ghardaïa, over a three-year period: 2022, 2023 
and 2024. In addition, a prospective study was also carried out in the form of a questionnaire 
distributed to people who had undergone HBV screening, blood donors and pregnant women 
over  a  period  of  3  months  (from  February  1  to  April  30,  2025). The  ELISA  enzyme-linked 
immunosorbent assay is the basic technique for diagnosing this disease. The results of the study 
show that patients aged between 20 and 44 are the most affected by the hepatitis B virus, with 
a predominance of males (56.21%). The main risk factors associated with transmission of the 
virus include lack of vaccination (81.82%), dental care (70%), hijama (60%), sharing personal 
objects (36.36%) and surgical history (18.18%).