A Concentration Method for HIV Drug Resistance Testing in Low-Level Viremia Samples

Table 1

Samples with different DRMs compared with undiluted samples by the ultracentrifugation method.

ID card	Subtype	PI	NRTI	NNRTI
DR-217B1	CRF01_AE	None	A62V, K65R, M184V	Y181C, G190S
DR-217B2	CRF01_AE	None	A62V, K65R, M184V	Y181C, G190S
DR-217B3	CRF01_AE	None	A62AV, K65R, M184V, K219KE	Y181C, G190S
DR-217B4	CRF01_AE	None	A62AV, K65R, M184V	Y181C, G190S
DR-316B1	CRF07_BC	None	None	E138G
DR-316B2	CRF07_BC	None	None	E138G
DR-316B3	CRF07_BC	None	None	E138G
DR-316B4	CRF07_BC	None	None	None

Abbreviations: NRTI: nucleoside reverse transcriptase inhibitors; NNRTI: nonnucleoside reverse transcriptase inhibitor; PI: protease inhibitor.