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HIV-1 subtypes in Yugoslavia.

Maja Stanojevic1, Anna Papa, Evagelia Papadimitriou

  • 1Institute of Microbiology and Immunology, Medical School, University of Belgrade, DrSubotica 1, 11000 Belgrade, Yugoslavia. nasta@eunet.yu

AIDS Research and Human Retroviruses
|May 23, 2002
PubMed
Summary

Genetic analysis of Human Immunodeficiency Virus type 1 (HIV-1) in Yugoslavia revealed subtype B predominates. Non-B subtypes were detected at low frequencies, potentially linked to international travel.

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Area of Science:

  • Virology
  • Genetics
  • Epidemiology

Background:

  • The Human Immunodeficiency Virus type 1 (HIV-1) epidemic presents diverse genetic subtypes globally.
  • Understanding the genetic landscape of HIV-1 in specific regions is crucial for effective public health interventions.

Purpose of the Study:

  • To investigate the genetic diversity of HIV-1 strains circulating in Yugoslavia.
  • To identify the predominant HIV-1 subtypes within the Yugoslavian epidemic.

Main Methods:

  • Phylogenetic analysis of the polymerase (pol) gene sequences from 45 HIV-1 infected individuals.
  • Subtyping of viral isolates based on sequence data.

Main Results:

  • Subtype B was the predominant HIV-1 pol subtype, identified in 91.2% of specimens.

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  • Subtypes C (4.4%), CRF01_AE (2.2%), and CRF02_AG recombinant (2.2%) were detected at lower frequencies.
  • Nucleotide divergence within subtype B sequences was 4.8%.

    • Conclusions:

    • HIV-1 subtype B is the dominant strain in Yugoslavia.
    • The presence of non-B subtypes is infrequent and may be associated with international travel patterns.