https://journaljamb.com/index.php/JAMB <p><strong>Journal of Advances in Microbiology (ISSN: 2456-7116) </strong>aims to publish high quality papers (<a href="https://journaljamb.com/index.php/JAMB/general-guideline-for-authors">Click here for Types of paper</a>) in all areas of Microbiology. By not excluding papers based on novelty, this journal facilitates the research and wishes to publish papers as long as they are technically correct and scientifically motivated. The journal also encourages the submission of useful reports of negative results. This is a quality controlled, OPEN peer-reviewed, open-access INTERNATIONAL journal.</p> <p><strong>NAAS Score: 5.14 (2026) </strong></p> en-US [email protected] (Journal of Advances in Microbiology) [email protected] (Journal of Advances in Microbiology) Sat, 06 Jun 2026 11:55:44 +0000 OJS 3.3.0.21 http://blogs.law.harvard.edu/tech/rss 60 https://journaljamb.com/index.php/JAMB/article/view/1138 <p>Hepatitis B remains one of the most widespread chronic viral infections and represents a major public health challenge worldwide. This study aimed to determine the seroprevalence of hepatitis B virus infection and to identify associated risk factors in subjects admitted to the Ngoyo General Hospital in Pointe-Noire. This was a cross-sectional analytical study conducted from January 2022 to December 2025. Sociodemographic data were collected using a questionnaire, while HBsAg detection was performed by ELISA. Statistical analyses were performed using GraphPad Prism software. A total of 1,237 patients were included, with a male predominance of 63.05% versus 36.90% females (sex ratio 1.70 ~2). The mean age was 36.72 ± 10.10 years (18 - 65 years). The most represented age group was 31 to 45 years, at 55.69%. The seroprevalence of HBV infection was 5.50%. Lack of vaccination against HBV was associated with a significant increase in the risk of infection (p = 0.033), as were a history of blood transfusion (p = 0.037) and multiple sexual partners (p = 0.038). After adjustment, a history of tattooing or scarification (p &lt; 0.001) and drug use (p &lt; 0.001) were independently associated with a lower probability of HBV infection. This study demonstrated the existence of risk factors related to the hepatitis B virus within the hospital population and contributes to strengthening awareness, regular clinical follow-up, and long-term management of patients infected with HBV.</p> Andrely Christ Ismael Nsadi, Luc Magloire Anicet Boumba, Ghislain Loubano-Voumbi, Freddy Saturnin Pouki, Aladin Atandi Batchy, Azine Jeanisca Tounga, De Grace Yanick Kayi, Noblesse Prestina Miakoukila, Ibara Kolo, Louis Constant Mbele, Alain Serge Bikindou, Donatien Moukassa Copyright (c) 2026 Author(s). The licensee is the journal publisher. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. https://journaljamb.com/index.php/JAMB/article/view/1138 Sat, 06 Jun 2026 00:00:00 +0000