Table 1. Characteristics of the RNA positive samples.

Sample	Siemens S/CO	Roche S/CO	Viral load (c/mL)	Western blot	Follow up testing
JE562	5.18	45.24	124901	Indeterminate*: +gp160, +p55, +gp41, +p40, +p24, +p18	Strongly positive serology
KD902	7.7	76.36	5687	Positive: ++gp160, +++gp120, +++p65, ++p55, ++gp41, +p40, ++p31, +p24, +p18	Viral load 5558
KD136	6.04	95.63	533388	Indeterminate*: +gp160, +p55, +gp41, +p40, +p31, +p24	Strongly positive serology
KD073	7.03	26.56	136	Indeterminate*: +gp160, +p55, +p40, +p24	Viral load LDL
KD795	1.23	5.82	<100	Indeterminate*: +gp41	ND
KD527	2.61	13.1	<100	Negative	ND
KD998	0.96	7.65	<100	Negative	ND

*Faint bands present resulting in an indeterminate classification, as per manufacturer instructions.