Experiences with genetic screening for established and new agents.

Area of Science:

• Virology
• Blood Transfusion Safety
• Public Health

Background:

• Hepatitis C Virus (HCV) RNA testing is crucial for blood safety.
• National coordination of testing programs ensures widespread implementation.
• European Economic Community (EEC) requirements influenced initial testing strategies.

Purpose of the Study:

• To describe the implementation of Polymerase Chain Reaction (PCR) for HCV RNA detection in England.
• To outline the evolution of HCV RNA testing protocols for blood components.
• To ensure the safety of blood products despite changes in plasma sourcing.

Main Methods:

• Nationally coordinated introduction of PCR for HCV RNA testing.
• Testing of minipools of 96 samples before release of frozen components.
• Adaptation of original plans (minipools of 480 samples) due to plasma sourcing changes.

Main Results:

• All frozen components are now tested for HCV RNA on pools of 96 samples.
• The program was modified to accommodate plasma sourced from the USA.
• HCV PCR tested components are released, maintaining safety standards.

Conclusions:

• The national HCV RNA PCR testing program in England ensures blood safety.
• Programmatic flexibility allowed adaptation to new plasma sourcing strategies.
• Continued vigilance in blood component testing is essential for public health.