Table 1.

Summary of Classifications

Classification	pol IN	env IDR	Overall
CRF01	36	36	36
CRF02	26	11	11
CRF06	4	9	4
CRF09	6	6	6
CRF11	24	25	18
CRF13	5	14	4
CRF18	3	3	3
CRF22	56	57	51
CRF37	9	15	8
CRF43	1	1	1
U/URF	23	7	51
H	1	1	1
A	0	4	0
Not sequenced	NA	5	NA
Group N	4	4	4
Group P	1	1	1
Total	199	199	199

The classifications determined by phylogenetic inference as shown for the pol IN and env IDR sequences. Overall classifications were determined by comparing pol IN and env IDR individual classifications. Where regions did not match, an overall classification of URF was made. N = 5 specimens could not be sequenced in the env IDR region. The overall classifications for these samples were determined solely by the pol IN sequence.

CRF, circulating recombinant form; NA, not applicable; U, unclassified; URF, unique recombinant form.