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Year : 2018  |  Volume : 36  |  Issue : 3  |  Page : 352-356

Hepatitis C virus infection in a tertiary care hospital in Mumbai, India: Identification of a mixed and novel genotype

1 Department of Transfusion Transmitted Diseases, National Institute of Immunohaematology (ICMR), Mumbai, Maharashtra, India
2 Department of Gastroenterology, Lokmanya Tilak Municipal General Hospital and Lokmanya Tilak Municipal Medical College, Mumbai, Maharashtra, India
3 Department of Gastroenterology, KEM Hospital, Mumbai, Maharashtra, India

Correspondence Address:
Dr. Aruna Shankarkumar
Department of Transfusion Transmitted Diseases, National Institute of Immunohaematology (ICMR), 13th Floor, New Multistoreyed Bldg, KEM Hospital Campus, Parel, Mumbai - 400 012, Maharashtra
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijmm.IJMM_18_221

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Purpose: Hepatitis C virus (HCV) is a leading cause of chronic hepatitis, liver cirrhosis and hepatocellular carcinoma (HCC). HCV being a ribonucleic acid virus has considerable sequence variability. Assessment of viral load and genotype is necessary for designing treatment strategies and monitoring for viral resistance among HCV-infected cases. HCC is the most common form of liver cancer, often occurring in people with chronic hepatitis B or C. We undertook this study to observe genotype distribution of the virus in HCV patients from Mumbai. Materials and Methods: Between January 2017 and December 2017, the study was conducted on 120 chronic hepatitis outpatients from a tertiary care hospital, Mumbai, after obtaining ethics approval. All these diagnosed cases of HCV were subjected to molecular diagnosis in a research institute, Mumbai, by real-time polymerase chain reaction-based techniques. Results: Males were more preponderant than females with HCV infection, and the highest number of HCV-infected cases was observed in the age group of 41–50 years. Genotype 3 (n = 70; 58.3%) accounted for the highest number of cases followed by genotypes 1b (n = 29; 24.2%) and then 1a (n = 14; 11.7%). Mixed genotypes 1b + 3 and individual genotype 4 were found in two cases each (1.7%). A total of three samples (2.5%) were found with untypeable genotype. Conclusion: The major HCV genotype observed was 3 which is difficult to treat with direct-acting antivirals, owing to the more rapid progression of liver disease, increased rates of steatosis (non-alcoholic fatty liver disease), a higher risk for cancer (HCC). We believe this study is the first one to address the prevalence of mixed genotypes and untypeable genotype from India.


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