Hepatitis C virus among blood donors in Lubumbashi, DRC: Seroprevalence and molecular characterisation.

OBJECTIVES: To date, no study has been done yet on the distribution of Hepatitis C virus genotypes in Lubumbashi, Democratic Republic of Congo. The objective of this work was to determine the seroprevalence and study the distribution of hepatitis C virus (HCV) genotypes among blood donors in Lubumbashi, DRC. METHODS: This was a cross-sectional descriptive study among blood donors. The detection of anti-HCV antibodies was carried out by rapid diagnostic test (RDT) then confirmed by Chemiluminescent immuno-assay (CLIA). Viral load was determined by Nucleic Acid Amplification test (NAT) on Panther system and genotyping by Next Generation Sequencing (NGS) on Sentosa platform. RESULTS: The obtained seroprevalence was 4.8%. Genotypes 3a (5.0%), 4 (90.0%) and 7 (5.0%) and a few drug resistance mutations were identified in the study population. Significant disturbances of some studied biochemical parameters (HDL-cholesterol, direct bilirubin, transaminases, ALP, GGT and albumin) have been observed in positive HCV blood donors. Irregular family and volunteer donors have been found as the socio-demographic characteristics associated with hepatitis C. CONCLUSION: With a seroprevalence of 4.8% obtained among blood donors, Lubumbashi is in an area with medium endemicity for HCV, highlighting the need to implement strategies aiming to improve transfusion safety among blood recipients in Lubumbashi. This study reports for the first time the presence of HCV strains of genotypes 3a, 4 and 7. These results might allow better therapeutic management of HCV infections and contribute to the development of the mapping of HCV genotypes in Lubumbashi and DRC as well.

Knowledge, attitude, and practice towards hepatitis B and C viruses among the population of Lubumbashi, Democratic Republic of Congo

Background Hepatitis B (HBV) and C (HCV) infection remains significant public health problem worldwide. Unfortunately, the Democratic Republic of Congo is in an area of high endemicity, and its population remains poorly informed about these viral infections. Therefore, this study aims to determine Lubumbashi's knowledge, attitudes, and practices toward HBV and HCV. Methods We conducted a cross-sectional descriptive study from March to August 2022 in Lubumbashi. A total of 704 participants were enrolled. We targeted all people of both sexes and ages. The participants' Knowledge, Attitudes, and Practices (KAP) survey was assessed using online and printed or paper questionnaires. Data were analyzed using SPSS version 22 software. Results Of the 704 participants, 70.9% had poor knowledge of viral hepatitis B and C, whereas 28.6% had terrible attitudes towards these infections and preferred to consult traditional healers instead of going to the hospital. A minority of the participants (12.2%) had good practices, those as being screened regularly to exclude any possible infection and being willing to be vaccinated depending on the availability of the HBV vaccine. Most participants (69.2%) needed to be aware of drugs that could effectively treat these infections. Conclusion Knowledge and practice about HBV and HCV in the Congolese population living in Lubumbashi have proven wrong. Similarly, the attitudes of the people towards these infections were negative. Therefore, an extensive health education program should be given to increase the awareness of this part of the Congolese population about HBV and HCV infection to provide better care.