Tissue substrate |
More efficient on frozen tissue |
Optimized for formalin-fixed and paraffin-embedded tissues |
Sensitivity |
Very high (<1 viral copy per host genome) |
High (up to 1 viral copy per host genome) |
Specificity |
Suboptimal - susceptible to viral contaminant or “passenger virus” |
High |
Tissue context |
Not perceptible |
Visualization of viral distribution in tissues |
Transferability |
Restricted to the molecular laboratory |
Available to the surgical pathology laboratory |
Confirmation of clinical relevance |
Poor |
Superb |