Fig. 1

Motivations to participate in phase one trials. A = “I receive free counselling”; B = “I receive free HIV tests”; C = “I receive other tests or medical care for free or at no cost to me”; D = “I want to help find a vaccine that works for HIV prevention”; E = “The vaccine might protect me against HIV”; F = “I will be reimbursed or paid for being in this study”; G = “I will be informed by research” H = “It might help me to avoid high-risk behaviour”; I = “I am helping my community”; J = “I know someone who died of AIDS or who is HIV infected”