Frequent horizontal and mother-to-child transmission may contribute to high prevalence of STLV-1 infection in Japanese macaques

Table 2 Age-dependent changes of the prevalence of anti-STLV-1 antibody and provirus DNA in JMs

Age	Number of JMs examined	Number of seropositive	Seropositive %	Geometric mean of antibody titer	Number of PVL-positive	Proviral DNA-positive %	Geometric mean of PVL
0	54	9	17	93	6	11	0.046
1	48	16	33	2048	15	31	0.42
2	31	18	58	2702	18	58	0.74
3–5	28	22	79	3846	21	75	0.53
6–8	27	25	93	3769	24	89	0.38
9–11	48	48	100	5087	47	98	0.54
12 ≤	44	42	95	6619	40	91	1.2
Total	280	180	64		171	62

ISSN: 1742-4690