Susceptibility of HIV-1 strains with single transmitted drug resistance mutations.

Susceptibility was predicted using the Rega resistance interpretation algorithm (V6.4.1) (ref). NNRTI, non-nucleoside reverse transcriptase inhibitor; NRTI, nucleoside reverse transcriptase inhibitor; PI, protease inhibitor;1)In eight patients the single resistance mutation was present as a polymorphism together with wild-type virus;2)Ten patients in cluster no 4, two patients in cluster no. 5, one patient in cluster no. 2;3)Two patients (with T215S) in cluster no. 6;4)Two patients in cluster no. 7 and two patients in cluster no. 8;5)Two patients in cluster no. 9.