The Virology Service of the Pasteur Center of Cameroon recently published a scientific study highlighting the presence of mutations associated with resistance to hepatitis C virus (HCV) treatments in Cameroonian patients who had never received antiviral therapy.

Hepatitis C is a chronic viral infection that affects millions of people worldwide. In recent years, the arrival of direct-acting antivirals (DAAs) has significantly improved cure rates. However, the effectiveness of these treatments can be compromised by certain genetic variations of the virus, known as resistance mutations.

This research aimed to identify mutations naturally present in a key region of the virus, the NS5B gene, which plays a crucial role in viral replication and is an important target of current treatments.

Blood samples were collected from patients with chronic hepatitis C. After extracting and analyzing the viral genetic material, the researchers used molecular biology and sequencing techniques to characterize the virus genotypes and detect any mutations associated with drug resistance.

The analysis showed the circulation of several HCV genotypes in Cameroon, mainly genotypes 1, 2, and 4.
Notably, some mutations known to reduce treatment effectiveness were detected in patients who had not yet received any antiviral treatment. Among these was a clinically significant mutation associated with high resistance to a widely used antiviral.

These results suggest that resistance mutations may exist even before treatment begins, thereby increasing the potential risk of therapeutic failure. They highlight the importance of strengthening virological and molecular monitoring of patients to guide therapeutic choices and optimize the management of hepatitis C.

This study contributes to a better understanding of the genetic diversity of the hepatitis C virus in Central Africa and emphasizes the need to integrate local data into strategies to combat this infection.

Read the full scientific article: https://www.sciencedirect.com/science/article/pii/S2772707625002504?via%3Dihub