Answer: this is an IMPORTANT question as for me and its good that you questioned this in brainly so let me GIVE you some 4 major contributory factors to social problems for HIV and AIDS locally as well globally :

1. Promiscuity

Promiscuity is now the leading cause of the spread of HIV in the developing regions. Many people are having more than one sexual partner, and also prostitution is common in the regions (Hilary Heuler, VOA).

2. Ignorance

Most people living in these regions are fully aware of the disease, but they continue to get involved in practices that fuel its transmission.this ignorance will LEAD to further spreading of this sexually transmitted diseases which is not good at all for the increasing population.

3. Illiteracy

The Third World countries have a large percentage of people who know very little about HIV/AIDS. Generally, the illiterate people don’t know anything about the HIV transmission WAYS and preventative measures, and they continue to engage in unsafe practices that spread the virus.These people are also easily influenced by the beliefs, myths, and misconceptions about the disease.

4. Lack of Access to Maternity Services

Expectant mothers who are INFECTED find it hard to get medical advice on how to keep their newborns free from the virus. So there are usually many cases of mother-to-child transmission in places with scarce maternity services in these countries.

if there is something missing in my answer please notify me in the comment box for sure.