TABLE 3.

Intra-assay variability of clinical specimens^a

Patient	Sample type	BKPyV		JCPyV		Adenovirus
		Mean copy no./ml	%CV	Mean copy no./ml	%CV	Mean copy no./ml	%CV
1	Urine	2.8 × 109	1.36
2	Urine	3.5 × 103	3.36	2.4 × 107	0.33
3	Urine	7.5 × 103	1.47	7.1 × 102	12.78
4	Urine	5.2 × 106	0.91	3.6 × 106	0.72	1.1 × 103	4.92
5	Serum	2.4 × 104	1.34	1.1 × 105	1.29	2.8 × 107	0.87

^aMean copy number refers to the geometric mean viral copy numbers based on 10 replicates. %CV, percent coefficient of variation of 10 replicates.