Table 4. Characteristics of patients showing pol sequences within the 10 transmission clusters identified by phylogenetic reconstruction.

Cluster	No.	Sex	Age	Prefecture/City	Route oftransmission	HAART regimens	Months post-HAART	CD4+ Tcells/µl	Plasma HIV RNA copies/ml	Subtype pol(simplot)	Subtype env (tree)
1	440	Male	33	Yangjiang	Heterosexual	AZT+3TC+EFV	20.7	142	131669	CRF01_AE	CRF01_AE
	437	Male	44	Yunfu	Heterosexual	D4T+3TC+EFV	35.4	303	<50	CRF01_AE	CRF01_AE
2	529	Female	26	JiangMen	Heterosexual	D4T+3TC+NVP	0.5	299	<50	CRF01_AE	CRF01_AE
	305	Male	34	JiangMen	IDU	D4T+3TC+EFV	1.2	125	<50	CRF01_AE	CRF01_AE
3	301	Female	35	Yangjiang	Heterosexual	None		264	<50	CRF01_AE	CRF01_AE
	256	Male	41	Yunfu	Heterosexual	AZT+3TC+NVP	17.2	425	<508	CRF01_AE	CRF01_AE
4	28	Male	37	Shanwei	Heterosexual	D4T+3TC+EFV	1.1	30	277	CRF01_AE	CRF01_AE
	29	Male	54	Shanwei	Heterosexual	D4T+3TC+NVP	0.2	182	1000	CRF01_AE	CRF01_AE
	21	Female	57	Shanwei	Heterosexual	D4T+3TC+NVP	1.2	237	<50	CRF01_AE	CRF01_AE
5	408	Male	27	DongGuan	Heterosexual	D4T+3TC+NVP	3.1	77	<50	CRF01_AE	CRF01_AE
	456	Male	10	Zhongshan	Unknown	D4T+3TC+NVP	8.8	888	<50	CRF01_AE	CRF01_AE
6	39	Female	37	Sichuang Province	Blood transfusion	D4T+3TC+NVP	24.6	378	<50	CRF01_AE	CRF01_AE
	34	Male	31	Yangjiang	IDU	AZT+3TC+NVP	26.9	308	<50	URF (A/C/A)	A
7	339	Male	39	FoShan	Heterosexual	D4T+3TC+EFV	37.4	234	<50	CRF02_AG	CRF01_AE
	92	Female	30	FoShan	Heterosexual	None		350	<50	CRF02_AG	CRF02_AG
8	197	Male	31	GuangZhou	Heterosexual	None		181	40000	CRF08_BC	B
	198	Male	39	GuangZhou	Heterosexual	None		176	38107	CRF08_BC	CRF08_BC