. 2009 Mar 25;47(5):1491–1496. doi: 10.1128/JCM.02354-08

TABLE 1.

HIV-1 viral load comparison between frozen- and dried-plasma samples

Assay	No. of samples	Mean log₁₀ copies/ml in plasma		Difference in log₁₀ copies/ml
Assay	No. of samples	Frozen	Dried	Difference in log₁₀ copies/ml
Amplicor HIV-1 Monitor, v1.5	9	4.72	4.36	0.36
Versant HIV 3.0	12^a	4.38	3.87	0.51
NucliSens HIV-1 QT	10	4.07	3.75	0.32

Three samples were <75 (1.87 log₁₀) copies/ml for both frozen and dried plasma.