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H5N1 influenza virus and the safety of plasma products

T R Kreil1, U Unger, S M Orth

  • 1Global Pathogen Safety and R&D Vaccines, Baxter BioScience, Vienna, Austria. thomas_kreil@baxter.com

Transfusion
|February 27, 2007
PubMed
Abstract

Insights

Plasma derivatives are safe from H5N1 influenza virus transmission. Standard virus inactivation methods effectively neutralize H5N1, ensuring the safety of blood products and preventing potential pandemics.

Area of Science:

  • Virology
  • Blood Product Safety
  • Infectious Diseases

Background:

  • Human H5N1 influenza infections are increasing, raising pandemic concerns.
  • Systemic virus dissemination in H5N1 infections includes significant blood concentrations.
  • This necessitates evaluating the safety of blood products and plasma derivatives.

Purpose of the Study:

  • To assess the effectiveness of virus inactivation processes used in plasma derivative manufacturing.
  • To confirm the safety margins of plasma products against H5N1 influenza virus transmission.

Main Methods:

  • Investigated inactivation of a reassortant H5N1 influenza virus strain.
  • Tested common manufacturing steps: pasteurization, solvent/detergent treatment, vapor heating, and low pH incubation.

Main Results:

  • H5N1 influenza virus, a lipid-enveloped virus, was effectively inactivated by all tested procedures.
  • Standard virus inactivation methods demonstrated efficacy against H5N1.

Conclusions:

  • Plasma derivatives possess substantial safety margins against H5N1 influenza virus transmission.
  • Current manufacturing processes ensure the safety of plasma products concerning H5N1.

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