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Hepatitis C virus genotypes among multiply transfused hemoglobinopathy patients from Northern Iraq
Adil A Othman1, Adil A Eissa2, Raji D Markous3
1Department of Biology, Faculty of Science, University of Zakho, Duhok, Iraq.
Insights
Hepatitis C virus (HCV) genotype 4 is predominant in Northern Iraq, unlike earlier findings. This study highlights regional differences in HCV genotypes, impacting epidemiology and treatment strategies.
Area of Science:
- Virology
- Epidemiology
- Public Health
Background:
- Limited data exists on Hepatitis C Virus (HCV) genotypes in Iraq.
- Understanding HCV genotypes is crucial for epidemiology and therapy.
- This study addresses the data gap in Northern Iraq.
Purpose of the Study:
- To determine the distribution of HCV genotypes in Northern Iraq.
- To provide data for epidemiological and therapeutic considerations.
- To compare findings with regional and national studies.
Main Methods:
- Genotyping of 70 HCV RNA-positive patients with hemoglobinopathies.
- Utilized genotype-specific nested polymerase chain reaction (PCR).
- Patients were selected based on HCV antibody positivity and detectable HCV RNA.
Main Results:
- HCV genotype 4 was the most prevalent (52.9%).
- Genotype 3a (17.1%) and 1b (12.9%) were also detected.
- Mixed genotypes (4 with 3a or 1b) occurred in 7.1% of cases.
Conclusions:
- The predominance of genotype 4 aligns with surrounding regions but contrasts with earlier Iraqi studies.
- A high proportion of genotype 3a and scarcity of 1a suggest unique population dynamics in Northern Iraq.
- Findings indicate significant HCV genotype heterogeneity within Iraq, necessitating further research.
Background And Aim:
Owing to the scarcity of data on hepatitis C virus (HCV) genotypes in Iraq and due to their epidemiological as well as therapy implications, this study was initiated aiming at determining these genotypes in Northern Iraq.
Materials And Methods:
A total of 70 HCV antibody positive multi transfused patients with hemoglobinopathies, who had detectable HCV ribonucleic acid, were recruited for genotyping using genotype-specific nested polymerase chain reaction.
Results:
The most frequent genotype detected was genotype 4 (52.9%) followed by 3a (17.1%), 1b (12.9%) and 1a (1.4%), while mixed genotypes (4 with either 3a or 1b) were detected in 7.1%.
Conclusion:
The predominance of genotype 4 is similar to other studies from surrounding Eastern Mediterranean Arab countries and to the only earlier study from central Iraq, however the significant high proportion of 3a and scarcity of 1a, are in contrast to the latter study and may be explainable by the differing population interactions in this part of Iraq. This study complements previous studies from Eastern Mediterranean region and demonstrates relative heterogeneity of HCV genotype distribution within Iraq and should trigger further studies in other parts of the country.
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