Table 3.

Comparing cell lines to infection with XMRV and MX viruses

Recipient cells	Virus	Trial 1	Trial 2	Trial 3	Trial 4	Ave ± Std		Ave
		IU/ml*	IU/ml	IU/ml	IU/ml	IU/ml	Relative infectivity**	MX/XMRV
HeLa	XMRV	1.0 X 105	8.8 X 104	1.6 X 105	8.0 X 104	1.1 ± 0.38 X 105	1 ± 0	36.0
	MX	4.3 X 106	3.1 X 106	4.5 X 106	3.1 X 106	3.8 ± 0.78 X 106	36.0 ± 6.52
293	XMRV	5.9 X 105	1.2 X 106	1.4 X 106		1.1 ± 0.42 X 106	9.24 ± 3.64	3.89
	MX	3.5 X 106	4.2 X 106	4.2 X 106		3.9 ± 0.38 X 106	35.9 ± 11.1
HepG2	XMRV		8.7 X 105	2.0 X 106	9.6 X 105	1.3 ± 0.63 X 106	11.4 ± 1.28	2.95
	MX		2.0 X 106	7.7 X 106	2.5 X 106	4.1 ± 3.2 X 106	33.6 ± 12.4
NRK	XMRV	1.2 X 105	2.9 X 104			7.4 ± 6.3 X 104	0.754 ± 0.593	14.5
	MX	1.2 X 106	8.4 X 105			1.0 ± 0.29 X 106	10.9 ± 2.01
DU145	XMRV	8.4 X 103	5.1 X 103			6.7 ± 2.3 X 103	0.0705 ± 0.0176	20.8
	MX	1.5 X 105	1.2 X 105			1.4 ± 0.21 X 105	1.47 ± 0.0846

The several cell lines were infected with XMRV or MX viruses that were produced from the infected 293 T cells (293 T/XMRV and 293 T/MX). *The infectious units (IU) were measured from the number of infectious centers that was normalized by the amount of Capsid in viruses and IU per ml was shown. **The relative infectivity to HeLa cells infected with XMRV viruses was shown.