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Hepatitis C virus prevalence and serotypes associated with HIV in The Gambia
C I Mboto1, M Fielder, A Davies-Russell
1Royal Victoria Hospital, Banjul, The Gambia.
Insights
This study found Hepatitis C virus (HCV) serotype 2 is most common in The Gambia, particularly among individuals with human immunodeficiency virus (HIV) coinfection. Routine screening for HCV in HIV patients and blood donations is recommended.
Area of Science:
- Hepatology
- Virology
- Epidemiology
Background:
- Hepatitis C virus (HCV) serotypes are crucial for understanding HCV disease, yet their epidemiology in West Africa remains understudied.
- Coinfection with human immunodeficiency virus (HIV) significantly increases morbidity and mortality in HCV patients.
Purpose of the Study:
- To determine the prevalence of HCV and its serotypes in HIV-infected individuals in The Gambia.
- To investigate the association between HIV and HCV serotypes in the West African subregion.
Main Methods:
- Screened 1500 individuals for HIV and HCV antibodies between July-December 2002.
- Typed HCV serotypes in coinfected patients.
- Analyzed HIV and HCV prevalence and co-infection rates.
Main Results:
- Identified HIV prevalence at 6.7% and HCV at 1.6%, with a 0.6% co-infection rate.
- HCV serotype 2 was most prevalent (58.1%), followed by serotype 1 (19.4%) and serotype 3 (6.5%).
- HIV-1/HCV serotype 1 co-infection was 44.4%, and HIV-1/HCV serotype 2 co-infection was 33.3%.
Conclusions:
- Findings suggest the West African subregion may be the origin of HCV serotype 2.
- Highlights the need for routine HCV screening in HIV-infected individuals and blood donations in The Gambia.
- Recommends further research to identify HCV sources in the region.
Abstract:
Hepatitis C virus (HCV) serotypes are important in the epidemiology and pathogenesis of HCV-related disease, but little is known of this connection in West Africa. Coinfection with human immunodeficiency virus (HIV) is associated with significant morbidity and mortality. This study aims to determine the prevalence of HCV and its serotypes associated with HIV in The Gambia. A total of 1500 individuals referred to the Royal Victoria Teaching Hospital for HIV serology between July and December, 2002 were screened for antibodies to HIV and subsequently for HCV, and seropositive samples were typed. This study shows HIV and HCV prevalence of 6.7% and 1.6%, respectively, with a co-infection rate of 0.6%. Serotype 2 showed the highest prevalence (58.1%), followed by serotype 1 (19.4%). Prevalence of HCV serotype 3 was 6.5% and five samples were untypeable. Co-infection of HIV-1 with HCV serotype 1 showed a prevalence of 44.4%, and with HCV serotype 2 of 33.3%. The findings support the evidence to suggest the West African subregion as the origin of HCV serotype 2. It also demonstrates the need for routine HCV screening of HIV-infected persons and blood donations, and calls for further studies to elucidate the sources of the HCV virus.
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