Table 1.

Frequency of recombinant types^a

p17 subtype	gp41 subtype	Frequency
A	G	3
A	H	1
A	J	2
A	CRF01	3
D	F	2
D	G	1
G	A	1
H	A	1
J	U	1

^aThe p17 and gp41 subtypes of discordant sequences and their frequency of occurrence in the data set are reported. Note that “U” denotes an unclassifiable sequence and “CRF01” denotes the circulating recombinant form previously known as subtype E, which forms a distinct clade at the 3′ end of the genome.