Table 1.

Clinical characteristics and MHC class I haplotypes of long term nonprogressors

Patient	HLA class I			Year of diagnosis	CD4+T cell count; cells/μl*	CD8+T cell count; cells/μl†	Plasma HIV RNA; copies/ml‡
	A	B	C
4	1, 31	57, 8	6, 7	1985	1,063	1,088	<50
5	2, 24	57	6, 7	1985	1,105	835	<50
6	11, 30	57, 52	7, 12	1986	760	803	<50–62
7	1, 2	57	6	1985	277	385	<50
8	11, 23	57, 44	4, 6	1985	664	1,120	<50–325
9	23, 26	57, 44	1, 7	1997	1,079	985	<50
10	1, 33	57, 50	6	1996	602	584	<50
12	3, 11	57, 7	6, 7	1986	500	218	<50
13	1, 11	57, 35	4, 6	1986	1,016	767	<50
25	3, 24	57, 27	2, 6	1986	1,028	1,082	<50–1,089
30	31, 74	57, 51	7, 16	1990	422	592	<50
3	2, 3	13, 39	6, 7	1985	915	1,079	<50
17	2, 26	27, 38	1, 12	1985	1,073	1,051	<50

*Mean CD4⁺ T cell counts of uninfected individuals are 912 ± 24.08 cells/mm³ in this laboratory. 

^†Mean CD8⁺ T cell counts of uninfected individuals are 528 ± 20.8 cells/mm³ in this laboratory. 

^‡Plasma virus was quantified by the bDNA assay (Chiron) with a 50 copies/ml plasma sensitivity.