They have been testing an AIDS vaccine, actually a combination of 2 failed AIDS vaccines in Thailand, and it appears that it has a 32% effectiveness rate.
That may not seem like much, but typically, you start to see reductions in outbreaks once you hit this level, and this is the first vaccine that has shown any effect ever.
Of course, we can now expect the vaccine manufacturers to price it at a high enough price so that people in Thailand won’t be able to afford the vaccine.