Does Preference-based HIV Testing Increase Uptake in High Risk Populations?

Participants will be offered 3 HIV testing options. The investigators will rank the predicted utility of all EXISTING HIV testing options for each participant and select those 3 PB-HCT options that jointly maximize the share of participants predicted to prefer at least one of the three options over the common option.

Participants will be offered 3 HIV testing options. The investigators will rank the predicted utility of all feasible HIV testing options for each participant and select 3 PB-HCT options that are less preferred than the common option

Participants will be re-contacted three months after being offered PB-HCT options. Participants will be reminded of the options, and offered an incentive to present for testing using any of the PB-HCT options or the common option.

Participants will be offered 3 HIV testing options. The investigators will rank the predicted utility of all feasible ENHANCED HIV testing options for each participant and select those 3 PB-HCT options that jointly maximize the share of participants predicted to prefer at least one of the three options over the common option.

Participants will receive an SMS reminder to test.