TABLE 1.

Treatment histories of sample donors

Sample no.	Viral load (no. of HIV RNA copies/ml)	Treatment at time of donation	Previous treatment
1	25,800	Indinavir, ritonavir didanosine, stavudine	Lamivudine
2	50,000	Ritonavir, lopinavir, didanosine	Indinavir, amprenavir, nelfinavir, abacavir, lamivudine, stavudine, saquinavir, zidovudine, zalcitabine, nevirapine
3	11,600	Didanosine, lamivudine, efavirenz	Stavudine, nevirapine, saquinavir, zidovudine
4	44,300	Lamivudine, zidovudine, nevirapine