TABLE 1.

Detection of HTLV-1 provirus and anti-HTLV-1 antibody in PBMC

Mouse no.	No. of positive results/no. of PCRs at the age of:					Anti-HTLV-1 antibody resulta
	7 wk		11 wk		15 wk
	gag	pX	gag	pX	pX
31	0/2	0/2	0/1	0/1	1/2	−
32	0/2	0/2	0/2	1/2	—b	−
33	0/2	1/2	0/2	0/2	2/2	−
34	0/2	0/2	0/1	0/2	0/2	−
35	0/2	0/2	0/2	0/2	2/2	−
41	0/2	NEc	0/2	0/2	0/2	−
42	1/2	2/2	1/2	0/2	0/2	−
43	0/2	0/2	0/2	2/2	—	−
44	0/2	0/2	0/2	0/2	0/2	−
45	0/2	1/2	2/2	2/2	—	−
46	0/2	0/2	0/2	0/2	0/2	−
51	NE	NE	0/2	0/2	0/2	−
52	NE	NE	0/2	0/2	—	−
53	NE	NE	1/2	2/2	—	−
54	NE	NE	0/2	1/2	0/2	−
55	NE	NE	—	—	—	−
56	NE	NE	—	—	—	−
57	NE	NE	NE	NE	0/2	−
No. of positive animals	1/11	3/10	3/15	5/15	3/11	0/18
% Positive animals	9	30	20	33	27	0

^a−, anti-HTLV-1 antibody titer of <1:16. 

^b—, no sample available. 

^cNE, not examined.