Changing HCV genotypes distribution in Poland--relation to source and time of infection

Slawomir Chlabicz1, Robert Flisiak, Oksana Kowalczuk

  • 1Department of Family Medicine and Community Nursing, Medical University of Bialystok, Mieszka I 4 B, 15-054 Białystok, Poland. schlabicz@poczta.onet.pl

Insights

Hepatitis C virus (HCV) genotype 3 is increasingly prevalent in Poland, particularly among intravenous drug users (IVDU). Genotype 1b proportions have declined, indicating a shift in HCV epidemiology.

Area of Science:

  • Hepatology
  • Virology
  • Infectious Diseases

Background:

  • Hepatitis C virus (HCV) genotype distribution impacts patient prognosis and treatment efficacy.
  • Understanding regional HCV genotype patterns is crucial for public health strategies.

Purpose of the Study:

  • To analyze the distribution of HCV genotypes in Poland.
  • To correlate genotype prevalence with transmission routes and infection year.

Main Methods:

  • Retrospective analysis of chronic liver disease patients in Bialystok, Poland.
  • HCV genotyping using 5'UTR sequencing.
  • Comparison with established genotype sequences.

Main Results:

  • Genotype 1 was most frequent (57.5%), followed by genotype 3 (31.3%) and genotype 4 (8.4%).
  • Genotype 1 dominated blood transfusion-associated infections (68.8%), while genotype 3 was more common in intravenous drug users (IVDU) (56.5%).
  • A significant increase in genotype 3 infections was observed post-2000 (19.1% to 38.9%).

Conclusions:

  • The proportion of HCV genotype 1b has decreased in Poland.
  • HCV genotype 3a prevalence has risen, notably within the IVDU population.
  • These shifts necessitate updated epidemiological surveillance and treatment guidelines.
Abstract

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