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Determination of hepatitis C virus genotypes circulating in different districts of Punjab (Pakistan).

Abstract：

INTRODUCTION:Hepatitis C virus (HCV) is a principal cause of severe liver diseases worldwide and a possible source of significant morbidity and fatality in the long term. Information on the genotype is more significant because it has prognostic value in the response to antiviral therapy. OBJECTIVES:This study aimed to determine the frequency of various HCV genotypes circulating in the different districts of Punjab and to show the pattern distribution of HCV genotypes in different age groups and sexes. MATERIALS AND METHODS:A total of 542 HCV-positive patients were selected from various districts of the province and were subjected to an HCV genotype-specific assay. Among 542 positive patients, 300 (55.35%) were men and 242 (44.65%) were women. There were 245 (45.20%), 61 (11.25%), 56 (10.33%), 56 (10.33%), 53 (9.77%), 27 (5%), 20 (3.69%), 16 (3%), and eight (1.47%) HCV-positive patients from Lahore, Sargodha, Multan, Toba Tek Singh, Faisalabad, Rawalpindi, Mandi Bahauddin Gujranwala, and Sahiwal districts, respectively. RESULTS:Of a total of 542 serum samples analyzed, 476 (88%) were successfully genotyped whereas 66 (12%) samples were undetermined genotypes. Among the typable genotypes, 1a was found in 37 (7%), 1b in 18 (3%), 3a in 386 (71%), and genotype 3b in five (1%) patients. Thirty patients (6%) were identified to be infected with mixed HCV genotypes. Genotypes 3a (P=0.0001), 1a (P=0.001), and untypable genotypes (P=0.03) were circulating significantly in all the studied districts. All the genotypes were distributed evenly in male and female patients. The most affected age range of patients was 21-40 years as compared with teenage and older age groups. CONCLUSION:The study found a significantly high prevalence of HCV among the patients of Punjab. In addition, genotype 1a was found to be a significantly and rapidly increasing genotype in the study area. It appears that HCV-3a (the most prevalent genotype) may be replaced by genotype 1a. If this occurs, it will make the present scenario more complex in terms of response to therapy and economic burden on the health sector of Pakistan. HCV infection is more common in the age group of 21-40 years. All the genotypes were distributed at the same frequency in men and women.

journal_name

Eur J Gastroenterol Hepatol

journal_title

European journal of gastroenterology & hepatology

authors

Waqar M,Khan AU,Rehman HU,Idrees M,Wasim M,Ali A,Niaz Z,Ismail Z,Rehman MU,Tariq M,Shah M,Murtaza BN

doi

10.1097/MEG.0b013e328362dc3f

subject

Has Abstract

pub_date

2014-01-01 00:00:00

pages

59-64

issue

eissn

0954-691X

issn

1473-5687

journal_volume

pub_type

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Determination of hepatitis C virus genotypes circulating in different districts of Punjab (Pakistan).