What you need to know about the trial:
There is no guarantee that this vaccine will prevent a person from being infected with HIV;
lThe trials are in Soweto, Cape Town, Klerksdorp and Durban, and at Medunsa;
lVolunteers must be healthy, HIV-negative, aged 18 to 35 years and sexually active;
lFemale volunteers must not be pregnant;
lVolunteers will be required to go for counselling before signing the consent form;
lThe vaccine has been tested in the US, Australia and some African countries.
lOnly half the volunteers will get the vaccine; the rest will be given a placebo (not a vaccine);
lNeither volunteers nor researchers will know whether the vaccine or a placebo has been administered;
lThe trial will run for four years and volunteers will have to visit the clinic nine times during the trial.