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Two Methods of Heterokaryon Formation to Discover HCV Restriction Factors
Published on: July 16, 2012
Lack of evidence for the heterosexual transmission of hepatitis C
S C Gordon1, A H Patel, G W Kulesza
1Department of Internal Medicine, William Beaumont Hospital, Royal Oak, Michigan.
Insights
Sexual transmission of hepatitis C virus (HCV) is uncommon. This study found a low transmission rate among partners with frequent, unprotected sexual contact, suggesting other routes like razor sharing may be more significant for HCV spread.
Area of Science:
- Hepatology
- Virology
- Infectious Diseases
Background:
- Hepatitis C virus (HCV) infection poses a significant global health burden.
- Understanding transmission routes is crucial for effective prevention strategies.
- The role of sexual transmission of HCV remains a subject of investigation.
Purpose of the Study:
- To evaluate the potential for sexual transmission of the hepatitis C virus (HCV).
- To assess HCV transmission rates within stable sexual partnerships.
- To identify risk factors associated with HCV transmission in this context.
Main Methods:
- A cohort of 42 young adults with chronic HCV infection and their stable sexual partners were studied.
- HCV antibody testing and HCV RNA detection using nested polymerase chain reaction were performed on partners.
- Detailed sexual history and other potential risk factors, such as razor sharing, were collected.
Main Results:
- Only one partner (2.4%) without independent risk factors tested positive for anti-HCV antibody and HCV RNA.
- This transmission occurred in a partner who reported frequent razor sharing with the index patient, leading to skin lacerations.
- Ninety percent of partners reported frequent and unprotected sexual intercourse, yet showed low HCV seroprevalence.
Conclusions:
- Heterosexual transmission of hepatitis C is extremely uncommon, even with frequent unprotected sexual contact.
- Razor sharing emerged as a potential significant transmission route in this cohort.
- Further research into non-sexual transmission routes like fomite sharing is warranted for comprehensive HCV prevention.
Abstract:
To determine the potential for sexual transmission of the hepatitis C virus (HCV), we specifically studied a cohort of 42 young adults (median age, 39 yr) with chronic HCV infection and their stable sexual partners. All HCV assays were supplemented with the four-antigen recombinant immunoblot assay, and 39 of 42 partners were tested for HCV RNA by the nested polymerase chain reaction. Ninety percent of the partners reported frequent and unprotected sexual intercourse with the index patients. Two of 42 partners tested positive for the anti-HCV antibody and both were HCV RNA positive; one had independent risk factors for viral hepatitis. Therefore, one of 41 partners, (2.4%; 95% CI, 0.6-12.9%) without independent risk factors for HCV was anti-HCV positive. This woman was one of five partners (20%; 95% CI, 1-66%) who reported frequent razor-sharing with the index patient. The partner frequently sustained skin lacerations, with bleeding, secondary to this shared razor blade. We conclude that heterosexual transmission of hepatitis C is extremely uncommon, despite frequent and unprotected sexual intercourse.
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