On this twentieth World AIDS Day, we are at the dawn of a new era. Fewer people are being infected with HIV. Fewer people are dying of AIDS. This success owes itself to people all over the world who are taking the lead to stop AIDS. Governments are delivering on their promises to scale up universal access to HIV prevention, treatment, care and support. But this is just the beginning. There is no room for complacency. AIDS will not go away any time soon.