TABLE 1.

Distances in the vpr sequences within mothers, within infants, and between mother-infant pairs

Sequence	Pair	% Distance for sequencesa
		Within mothers			Within infants			Between mother-infant pairs
		Min	Median	Max	Min	Median	Max	Min	Median	Max
Nucleotide	A	0	2.2	5.3	0	0.8	2.5	0.3	2.4	5.3
	B	0	0.6	1.9	0	0.5	1.6	0	0.8	2.5
	C	0	0.8	1.9	0	1.0	2.2	0.3	1.2	2.5
	D	0	0.6	1.6	0	1.1	2.8	0.3	1.1	2.5
	E	0.3	2.5	5.3	0.3	1.5	2.8	0.9	2.9	5.0
	F	0	0.7	2.2	0	1.5	3.7	0.6	1.6	4.0
	Totalb	0	1.1	5.3	0	1.0	3.7	0	1.5	5.3
Amino acid	A	0	3.5	10.4	0	2.1	6.3	0	3.0	10.4
	B	0	1.6	5.2	0	0.9	4.1	0	1.3	5.2
	C	0	1.3	4.2	0	2.2	4.2	0	1.2	4.2
	D	0	0.6	2.1	0	2.0	5.2	0	1.3	4.2
	E	0	3.5	8.3	0	2.1	4.2	0	3.4	7.3
	F	0	1.1	6.3	0	3.8	12.5	1.0	3.2	12.5
	Total	0	1.8	10.4	0	1.9	12.5	0	2.0	12.5

^aExpressed as percent nucleotides (for nucleotide sequence) or percent amino acids (for amino acid sequence). Min, minimum; Max, maximum. 

^bCalculated from all the pairs taken together.