Figure 2
From: Use of dried blood samples for monitoring hepatitis B virus infection
Viral Load correlation between DBS and plasma matched samples at different storage temperatures. The VL was assessed by Cobas Monitor Amplicor, and the values were transformed to Log10. VL values for plasma samples from ten different patients (sample ID) stored at -70 degree C (P), and paired blood spots samples stored at 4 degree C (D 4), 25 degree C (D 25), 37 degree C (D 37), and -20 degree C (D-20) for up to 7 days, and removed to -20 degree C until analysis.