Table 2. Characteristics of HIV-1 viral clones used in these experiments.

IMC	Subtype	Infection statusa	Sex	Risk factorb	Country of origin	Reference
ZM249M	C	TF	M	HSX	Zambia	[23]
CH042	C	TF	M	HSX	South Africa	[24]
CH200a	C	TF	M	HSX	Malawi	[25]
CH106	B	TF	M	MSM	USA	[24]
CH607	B	TF	M	MSM	USA	[24]
ZM247Fv2	C	TF	F	HSX	Zambia	[26]
CH198	C	TF	M	HSX	South Africa	[24]
TRJO	B	TF	M	MSM	USA	[24]
CH131s	C	TF	M	HSX/MSM	Malawi	[25]
CH185	C	TF	F	HSX	South Africa	[24]
CH141	C	CC	F	HSX	Malawi	[25]
CH200b	C	TF	M	HSX	Malawi	[25]
CH293	C	CC	F	HSX	Malawi	[25]
CH534	C	CC	F	HSX	South Africa	[25]
CH164	C	TF	M	HSX/MSM	South Africa	[24]
REJO	B	TF	M	HSX	USA	[24]
CH067	C	TF	F	HSX	South Africa	[24]
CH457	C	CC	F	HSX	Tanzania	[25]
ZM247Fv1	C	TF	F	HSX	Zambia	[26]
CH040	B	TF	M	MSM	USA	[24]
CH432	C	CC	M	HSX	Malawi	[25]
RHPA	B	TF	F	HSX	USA	[24]
CH440	C	CC	F	HSX	Malawi	[25]
CH077	B	TF	M	MSM	USA	[24]
STCOr1	B	CC	M	MSM	USA	[25]
ZM246F	C	TF	F	HSX	Zambia	[25]
WARO	B	CC	F	HSX	USA	[25]
CH269	C	CC	F	HSX	Malawi	[25]
CH167	C	CC	F	HSX	Malawi	[25]
CH228a	C	TF	M	HSX	Malawi	[25]
MCST	B	CC	M	MSM	USA	[24]
CH470	B	TF	M	MSM	USA	[24]
WITO	B	TF	M	HSX	USA	[24]
THRO	B	TF	M	MSM	USA	[24]
RHGA	B	CC	M	MSM	USA	[25]
CH058	B	TF	M	MSM	USA	[24]
STCOr2	B	CC	M	MSM	USA	[25]

Rows in bold text are the viruses used for comparison of fusion in the different contraceptive groups.

^a TF: transmitted founder; CC: chronic control

^b MSM: men who have sex with men; HSX: heterosexual exposure.