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Related Experiment Videos

Transfusion virology: progress and challenges

P Simmonds1

  • 1Department of Medical Microbiology, University of Edinburgh, UK. Peter.Simmonds@ed.ac.uk

Blood Reviews
|September 24, 1998
PubMed
Summary
This summary is machine-generated.

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New virus detection technologies enhance blood transfusion safety. Nucleic acid amplification techniques like PCR enable earlier detection of infections, preventing transmission from window period donations.

Area of Science:

  • Virology
  • Transfusion Medicine
  • Molecular Diagnostics

Background:

  • Emerging viruses and advanced detection technologies significantly impact blood transfusion safety.
  • Serological screening for viruses like HTLV is established, but newer viruses pose challenges.
  • Recent discoveries include Hepatitis G Virus (HGV)/GB Virus-C (GBV-C) and Human Herpesvirus 8.

Purpose of the Study:

  • To discuss the implementation of additional serological screening tests for transfusion-transmissible viruses.
  • To review the prevalence and pathogenicity of recently discovered viruses.
  • To explore the potential of nucleic acid amplification techniques (NAATs) for enhanced blood screening.

Main Methods:

  • Review of current literature on viral prevalence and pathogenicity.

Related Experiment Videos

  • Discussion of practical implementation issues for new screening tests.
  • Analysis of technological advancements in NAATs, specifically Polymerase Chain Reaction (PCR).

    • Main Results:

    • NAATs, such as PCR, allow direct detection of viral nucleic acids.
    • PCR enables earlier identification of acutely infected individuals.
    • This technology can eliminate transmission from donations during the 'window' period before antibody detection.

    Conclusions:

    • Implementing advanced screening technologies like PCR is crucial for improving blood safety.
    • PCR-based screening can detect viruses for which serological methods are unavailable or underdeveloped.
    • A framework for PCR screening would allow testing for a broader range of transfusion-relevant viruses, including HAV, parvovirus B19, and GBV-C/HGV.