Observational studyPathogens (Basel, Switzerland)2025
Hepatitis C (HCV) and Hepatitis Delta (HDV) Viruses in a Teaching Hospital in Southern Italy: What Is the Epidemiological Situation in the Era of New Drugs?
Observational study in Pathogens (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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12 authors.
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Abstract
If the number of viral hepatitis infections is to be decreased worldwide, and the World Health Organization (WHO) elimination targets are to be achieved by 2030, this requires determining the burden of infection according to the WHO's test-and-treat approach. In 2014, the introduction of Direct-Acting Antivirals (DAAs) revolutionized the management of Hepatitis C Virus (HCV); another improvement came in 2020, when the use of bulevirtide (BLV) was authorized as a treatment for chronic Hepatitis D Virus (HDV) infection, showing good efficacy. The present observational study was carried out between 2019 and 2024. The diagnosis of viral hepatitis was carried out by routine assays. HDV typing was performed by Sanger sequencing and phylogenetic analysis. Overall, the HCV antibody prevalence was 3.4% in the studied time span, and it was higher in males than in females (59% vs. 41%). In viremic patients, HCV1b (33%) and HCV2a/2c (25%) were the most common subtypes. The overall HCV viremic rate declined in 2022 (2.8%). Unlike HCV, 71.4% of HDV viremic patients were females, and they had a median age of 58 years. The viral load of HDV RNA ranged from 20 IU/mL to 8 million IU/mL. Viral genotypes were classified as HDV1c and HDV1e. In this study, we highlight the prevalence of HCV/HDV infections and their genotype evolution in Southern Italy, underscoring the urgent need to enhance screening and linkage to care. Finally, we quantify the burden of active infections in order to provide data from real-life settings, and we describe the virological status of people living with HCV or HBV/HDV, who may experience significant benefits in terms of liver-related mortality after DAA or BLV treatment.
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