Table 2.

Distribution of HIV-1 group M (HIV-1M) lineages in the three studied genes (nef, gag-protease, and integrase) in Cameroon.

HIV-1M lineages	nef (%)	gag_protease (%)	Integrase (%)	Total (%)
A	10 (3.1)	0 (0)	0 (0)	8 (2)
A1	1 (0.3)	0 (0)	0 (0)	1 (0.25)
A2	1 (0.3)	0 (0)	1 (2.8)	2 (0.5)
D	18 (5.6)	4 (3.5)	1 (2.8)	21 (5.3)
F2	11(3.4)	2 (1.7)	2 (5.6)	11 (2.8)
G	10 (3.1)	6 (5.2)	0 (0)	11 (2.8)
H	2 (0.6)	0 (0)	0 (0)	2 (0.5)
CRF01_AE	32 (10)	2 (1.7)	2 (5.6)	26 (6.6)
CRF02_AG	160 (49.8)	75 (65)	22 (61)	207 (52.4)
CRF11_cpx	22 (6.8)	9 (8)	2 (5.6)	26 (6.6)
CRF13_cpx	6 (1.9)	0 (0)	1 (2.8)	5 (1.3)
CRF18_cpx	2 (0.6)	0 (0)	1 (2.8)	2 (0.5)
CRF22_cpxa		11 (9.6)	4 (11)	10 (2.5)
CRF25_cpx	1 (0.3)	0 (0)	0 (0)	1 (0.25)
CRF36_cpx	1 (0.3)	1 (0.9)	0 (0)	0 (0)
CRF37_cpx	0 (0)	1 (0.9)	0 (0)	1 (0.25)
CRF45_cpx	2 (0.6)	0 (0)	0 (0)	1 (0.25)
Divergent/recombinant	42 (13)	4 (3.5)	0 (0)	36 (9.1)
IGRb				24 (6.1)
Total	321	115	36	395

^aCRF22_01A1 sequences are imbedded within the CRF01_AE subtree in the nef gene.

^bIntergene recombinant.