Oxford University Press (OUP), Clinical Infectious Diseases, 3(47), p. 421-424
DOI: 10.1086/589867
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Using standard and ultrasensitive techniques, we detected nonnucleoside reverse-transcriptase inhibitor–associated resistance mutations in 11 (20%) of 54 subjects who discontinued virologically suppressive nonnucleoside reverse-transcriptase inhibitor–containing antiretroviral therapy. Resistance was detected in 45% and 14% of subjects with a baseline human immunodeficiency virus type 1 RNA level of 51–400 copies/mL and ≤50 copies/mL, respectively. Mutations remained detectable for at least 48 weeks in some subjects.