Human trials are now planned. If successful, the simple, cheap HIV vaccine could be taken as a probiotic-like drink.
The new vaccine works in the opposite way to most vaccines - by suppressing, rather than triggering, an immune response. This is because HIV and SIV actually require immune cells known as CD4 T-cells in order to proliferate and establish an infection in the body.
Source: http://www.aidsmap.com/Novel-immune-suppressant-vaccine-completely-blocks-HIV-infection-in-monkeys-human-trials-planned/page/2902377
