title: Prevalence of hepatitis B and C infections and HCV genotypes among haemophilia patients in ahvaz, southwest iran.
abstract: BACKGROUND
  Transfusion-transmitted hepatitis is the most important cause of transmitted infections by the parenteral route in patients with haemophilia.
  
  
  OBJECTIVE
  This study was performed to determine the prevalence of HBV, HCV, and different genotypes of HCV among haemophilia patients in Ahvaz city, southwest Iran.
  
  
  METHODS
  A cross-sectional study was conducted on 87 haemophilia patients referred to the Hemoglobinopathy and Thalassemia research centre during February 2008 to March 2009. Patients, sera were tested for HBsAg and anti-HCV using ELISA and confirmed by PCR (HBV) and RT-PCR (HCV). HCV genotypes were determined with HCV genotype specific primers using HCV genotyping kit.
  
  
  RESULTS
  The overall prevalence rate of HBsAg and anti-HCV were 1.1% (95% CI: 0-3.39) and 54% (95% CI: 43.5-64.4), respectively. Forty two of the anti-HCV patients (89.3%) were also HCV RNA positive. The prevalence of anti-HCV seropositivity was significantly higher (P = 0.0008) among patients who had started to receive transfusions before implementation of blood donor screening. Moreover, the number of transfusion were significantly associated with anti-HCV and HCV RNA positivity (P = 0.0041 and P = 0.023, respectively). The predominant HCV genotype among haemophilia patients in our region was 1a (26/42, 61.9%), although genotypes 1b and 3a were found in 26.1% (11/42) and 11.9% (5/42) of the patients, respectively.
  
  
  CONCLUSIONS
  It appears stringent donor selection procedures reduced HCV infection in multi-transfused patients, but it is still serious risk for these subjects.
authors.affiliation: Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran.
authors.forename: Mohammad Ali
authors.initials: MA
authors.lastname: Assarehzadegan
authors.forename: Mehri
authors.initials: M
authors.lastname: Ghafourian Boroujerdnia
authors.forename: Khodamorad
authors.initials: K
authors.lastname: Zandian
keywords: Genotype; Haemophilia A; Hepatitis B; Hepatitis C; Prevalence