1. Any of the following nonnucleoside reverse transcriptase inhibitor (NNRTI) mutations: V90I, A98G, L100I, K101E/H/P/Q, K103H/S/T, V106A/I/M, V108I, E138A/G/K/Q, V179D/E/F/G/I/T, Y181C/I/V, Y188C/H/L, V189I, G190A/C/E/Q/S, H221Y, P225H, F227C/L, M230I/L, P236L, K238N/T, K103N.