Table 1.

Characteristics of SMs born to naturally SIV-infected dams at YNPRC

Transmission type	No. of SMs by characteristic			No. of serologic tests
	≥1 SIV test	Male	Surviving for >1 yr	Total	At ≤1 yr of age
Presumptive MTIT	11	7	11	54	29
Non-MTIT	120	77	120	1,396	358
Nontransmission	30	7	27	476	96
Indeterminate	88	26	85	229	28
Total	249	117	243	2,155	511