[The diagnosis and prevention of parenterally transmitted viral infections]

Insights

This study investigated viral markers in blood donors and high-risk individuals. Hepatitis C virus antibodies were frequently detected in specific patient groups and drug addicts, with regional variations observed.

Area of Science:

  • Virology
  • Infectious Diseases
  • Public Health

Background:

  • Blood and plasma donors, along with individuals at high risk for infections, are routinely screened for viral pathogens.
  • Previous studies have indicated varying prevalence rates of viral infections across different populations and geographical regions.

Purpose of the Study:

  • To determine the prevalence of antibodies to Human Immunodeficiency Virus types 1 and 2 (HIV-1/2), Human T-Lymphotropic Virus type 1 (HTLV-1), and markers for Hepatitis B Virus (HBV) and Hepatitis C Virus (HCV).
  • To assess the detection rates in blood/plasma donors and individuals with high-risk exposure.
  • To compare the performance of two commercial test systems for anti-HCV detection.

Main Methods:

  • Serological testing for antibodies to HIV-1/2, HTLV-1, HBV markers, and anti-HCV.
  • Analysis of detection rates in various donor groups (general, reserve) and high-risk populations (hematological patients, hemodialysis patients, drug addicts, medical personnel).
  • Regional prevalence data collection for anti-HCV.
  • Comparative evaluation of sensitivity and specificity for two commercial anti-HCV test systems (Ortho, USA and Organon, Holland).

Main Results:

  • A high prevalence of anti-HCV was found in donors with elevated serum enzymes, hematological patients, hemodialysis patients, and drug addicts.
  • Significant detection rates of HBV markers were observed in hematological patients and medical personnel in hematological and surgical clinics.
  • Approximately 45% of reserve donors showed at least one HBV marker.
  • Regional anti-HCV detection rates varied: 1-3% in Baltic countries, 2-5% in Russia, 5-7% in Middle Asia, and 8-12% in Moldova.
  • The sensitivity and specificity of the Ortho and Organon anti-HCV test systems were comparable.

Conclusions:

  • Hepatitis C virus poses a significant detection challenge in specific high-risk populations and certain geographical regions.
  • Hepatitis B virus markers are prevalent among hematological patients and healthcare workers, necessitating continued vigilance.
  • The evaluated commercial test systems demonstrate reliable performance for anti-HCV detection.

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