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Two Methods of Heterokaryon Formation to Discover HCV Restriction Factors
Published on: July 16, 2012
HCV genetics and genotypes dictate future antiviral strategies
Louis Papageorgiou1,2, Chrisanthy Vlachakis3, Konstantina Dragoumani3
1Department of Informatics and Telecommunications, National and Kapodistrian University of Athens, University Campus, Athens 15784, Greece.
Insights
Hepatitis C virus (HCV) infection affects 170 million globally, primarily spread through contaminated needles. Early screening of blood transfusions significantly reduced transmission, but other routes persist.
Area of Science:
- Virology
- Infectious Diseases
- Public Health
Background:
- Hepatitis C virus (HCV) identified in the late 1980s causes most non-A, non-B hepatitis.
- HCV affects approximately 170 million people worldwide, exceeding HIV prevalence fivefold.
- Understanding HCV transmission is crucial for public health interventions.
Purpose of the Study:
- To review the epidemiology and transmission routes of Hepatitis C virus.
- To highlight the significance of HCV infection in global health.
- To discuss factors influencing HCV spread.
Main Methods:
- Review of existing literature on HCV identification and transmission.
- Analysis of epidemiological data on HCV prevalence.
- Identification of common and less common transmission pathways.
Main Results:
- Sharing injecting equipment is a primary HCV transmission route, with high prevalence in intravenous drug users.
- Blood transfusions were a major source before screening; nosocomial, sexual, and perinatal transmission also occur.
- HCV is five times more common than HIV globally.
Conclusions:
- HCV remains a significant global health concern with diverse transmission routes.
- Intravenous drug use and historically, blood transfusions, are key drivers of HCV infection.
- Concurrent HIV-1 infection may increase HCV transmission risk through specific routes.
Abstract:
At the end of the 1980s, the hepatitis C virus (HCV) was cloned and formally identified as the cause of the majority of non-A and non-B hepatitis cases. Today, around 170 million people worldwide are infected with HCV, making it five times more common than infection with the human immunodeficiency virus (HIV). Several methods exist which mediate the spread of infection. One of the most common and efficient is sharing or re-using injecting equipment; studies have indicated that 80-90% of individuals in some populations of intravenous drug users test positive in serum HCV assays. Contracting HCV from infected blood transfusions was also a major cause of infection before screening tests were introduced in the early 1990s. Other possible, but less common, methods of infection transmission include mother-to-child during pregnancy, sexual contact and nosocomial acquisition (for example between surgical or dialysis patients). It appears that concurrent HIV-1 infection increases the risk of HCV transmission via the mother-to-child or sexual routes.
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