In my view there are many crucial issues related to the continuation of AIDS in the world.
On one hand, there have been relevant resources destined to educate and to stop the transmission of the disease, but still scientific research has found a lot of difficulties to get support.
Artists, foundations, international organizations, governments have allocated economic resources to fight AIDS/HIV but scientific research to know more about AIDS is following another fight to get funds and support. The same happen with other diseases like malaria.
On the other hand, the gap that developing countries suffer requires a committed analysis from the international community. In developed nations AIDS is now a chronic disease thanks to the development of modern medicaments which do not cure the illness but stop it at a certain point. But in developing countries AIDS is still the main reason of death since those medicaments are not distributed at a fair price.
Many times they are incredibly much more expensive than in richer nations and at point the dissemination of generics has been one of the fairest decisions that developing nations such as Brazil has taken. But even this step, to give low price medicines to nations suffering from AIDS, has been discussed and criticized by certain elements, particularly pharmaceutical multinationals.
So I would say there are some problems regarding proper management of funds and lack of scientific research but the main issue is the gap in developing nations, as in other matters.