History[edit]
In 1999, new screening methods involving nucleic acid amplification and that protocol approved by FDA.
Nucleic acid Testing - Benefits:
Detects low levels of viral RNA or DNA.
Provides additional layer of safety to the blood supply because it allows the detection of infectious agents during their incubation period.
Have the ability to detect viral mutants and occult infections.
Highly sensitive and specific for viral nucleic acid.