First, there is the unit price of blood which is
increasing, as indicated previously on an annual
basis. This increase is driven by the need to introduce
new testing, such as nucleic acid testing for West Nile
virus, antibody testing for Chagas disease, bacterial
testing, and more recently, anti HLA antibody testing.
In the future, processing steps, such as pathogen
reduction and/or A and B antigen stripping will
result in an increase in unit price