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Updated: Jul 19, 2026

A Protocol for Analyzing Hepatitis C Virus Replication
Published on: June 26, 2014
Distribution of hepatitis C virus genotypes in patients infected by different sources and its correlation with
Ali Kabir1, Seyed-Moayed Alavian, Hussein Keyvani
1Tehran Hepatitis Center, Tehran, Iran. aikabir@yahoo.com
Insights
Hepatitis C virus (HCV) genotypes 1 and 3 are most common in Iran. While intravenous drug use is a risk factor, specific genotypes showed no significant association with risk factors in this study.
Area of Science:
- Virology
- Epidemiology
- Public Health
Background:
- Limited data exists on hepatitis C virus (HCV) genotypes and risk factors in Iran.
- This study addresses the knowledge gap by investigating HCV genotypes and associated risk factors in Iranian patients.
Purpose of the Study:
- To identify prevalent HCV genotypes in an Iranian patient cohort.
- To explore potential associations between identified HCV genotypes and documented risk factors.
Main Methods:
- Genotyping analysis was conducted on 156 patients positive for anti-HCV and HCV-RNA.
- Patients were interviewed regarding known risk factors for HCV infection.
Main Results:
- HCV genotypes 1 (55.8%) and 3 (28.8%) were the most prevalent.
- Subtypes 1a (37.8%) and 3a (28.9%) were most common.
- No statistically significant link was found between analyzed risk factors and HCV acquisition.
Conclusions:
- HCV genotypes 1a and 3a in Iranian intravenous drug users (IVDU) are less prevalent than in Europe and the USA.
- Despite geographical differences, a notable similarity exists in genotype patterns among IVDU in Iran, Europe, and the USA.
- Limited international travel among participants suggests migration is unlikely to explain these patterns.
Background:
Information about genotypes and associated risk factors in hepatitis C virus (HCV) infected patients in Iran is limited. The aim of this study was to identify the HCV genotypes and associated risk factors in a group of HCV infected patients from Iran.
Results:
Genotyping analysis was performed in 156 patients with positive anti-HCV and HCV-RNA. Patients were questioned concerning documented risk factors. Genotypes 1 and 3 were found in 87 (55.8%) and 45 (28.8%) patients, respectively. The most frequent HCV subtype was 1a (37.8), followed by 3a (28.9%) and 1b (16.7%). There was no statistically significant difference between the risk factors analyzed and the acquisition of HCV infection. We further found that 18 (40%) and 17 (37.8%) patients that were intravenous drug users (IVDU) had genotype 1a and 3a respectively.
Conclusion:
Genotypes 3a and 1a in Iran are less prevalent in IVDU than in Europe and USA, but there is a high similarity between the pattern of genotype in IVDU in both Europe and United States, and Iran. However, in this case it can not be due to people migration among countries since history of travel abroad existed only in 6 cases (13.3%).
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