Hepatitis B and C virus infection among hemodialysis patients in
yogyakarta, Indonesia: Prevalence and molecular evidence for nosocomial
transmission
a Center for
Infectious Diseases, Kobe University Graduate School of Medicine, Kobe,
Japan
b Department of Anatomical Pathology, Faculty of Medicine, Dr. Sardjito Hospital, Gadjah Mada University, Yogyakarta, Indonesia
c Department of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Japan
b Department of Anatomical Pathology, Faculty of Medicine, Dr. Sardjito Hospital, Gadjah Mada University, Yogyakarta, Indonesia
c Department of Gastroenterology, Kobe University Graduate School of Medicine, Kobe, Japan
Abstract
Hemodialysis
patients are at an increased risk of acquiring hepatitis B virus (HBV) and
hepatitis C virus (HCV) infection. However, the prevalence of hepatitis viral
infection and its genotype distribution among hemodialysis patients in
Indonesia are unclear. In order to investigate these issues and the possibility
of nosocomial transmission, 161 hemodialysis patients and 35 staff members at
one of the hemodialysis unit in Yogyakarta, Indonesia, were tested for
serological and virological markers of both viruses. HBV surface antigen
(HBsAg) was detected in 18 patients (11.2%) and in two staff members (5.7%).
Anti-HCV was detected in 130 patients (80.7%) but not in any staff members.
Occult HBV and HCV infection were detected in 21 (14.7%) and 4 (12.9%) patients,
respectively. The overall prevalence rates of HBV and HCV infection among
patients were 24.2% and 83.2%, respectively. HCV infection was independently
associated with hemodialysis duration and the number of blood transfusions.
Phylogenetic analysis revealed that 23 of 39 tested HBV strains (59%) were
genotype B, 11 (28.2%) were genotype C, and 5 (12.8%) were genotype A. HCV
genotype 1a was dominant (95%) among 100 tested HCV strains. Nosocomial
transmission was suspected because the genotype distribution differed from that
of the general population in Indonesia, and because the viral genomes of
several strains were identical. These findings suggest that HBV and HCV
infection is common among hemodialysis patients in Yogyakarta, and probably
occurs through nosocomial infection. Implementation of strict infection-control
programs is necessary in hemodialysis units in Indonesia.
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