Table 1.
Patient characteristics |
Virologic analyses of variants |
|||||
---|---|---|---|---|---|---|
Date | ART | CD4 cell count, cells/mm3 | Site of origina | HIV-1 RNA load, log copies/ml | Total variants, N | Recombinants, N, (%) |
5-98 | None | 120 | Plasma | 5.34 | NA | NA |
2-00 | AZT, 3TC, NVP | 359 | Plasma | 4.30 | 22 | Parental strainsb |
CVL | 4.85 | 33 | Parental strainsb | |||
7-00 | AZT, 3TC, NVP | 387 | Plasma | 4.30 | 17 | 1(6) |
CVL | 4.15 | 17 | 5 (29) | |||
2-01 | AZT, 3TC, NVP | 368 | Plasma | 3.68 | 9 | 2(22) |
7-01 | AZT, 3TC, NVP | 358 | Plasma | 3.99 | 7 | 4 (57) |
2-02 | AZT, 3TC, NVP | 530 | Plasma | 3.76 | 10 | 2 (20) |
7-02 | None | 224 | Plasma | 4.77 | 10 | 3 (30) |
1-03 | AZT, 3TC, NVP | 338 | Plasma | 4.18 | 9 | 3 (33) |
6-03 | None | 211 | Plasma | 5.80 | 11 | 1 (9) |
12-03 | AZT, 3TC, NVP | 249 | Plasma | 3.20 | 14 | 2 (14) |
Total | 159 | 23 (22)c |
Sequences were obtained from plasma at each time point and from CVL obtained in February and July of 2000. At later time points, CVL viral loads were <80 copies/ml. Data in the three columns furthest to the right refer to analyses of samples from either CVL or plasma.
ART was initiated shortly before the 2-00 visit and resistance mutations were detected for the first time in samples from that visit. We therefore considered variants from that time point as putative parental strains in the recombination analyses.
Because strains obtained in 2-00 were considered as putative parental strains, the 104 variants obtained after 2-00 were included to calculate the percentage of recombinant variants.
ART, antiretroviral therapy; AZT, zidovudine; 3TC, lamivudine; NVP, nevirapine; CVL, cervicovaginal lavage; NA, not analyzed because the consensus sequence was obtained only for this time point.