AIDS/STDs in the African American Community

I was talking to a friend of mine on the phone about the AIDS Walk that is occuring in Kansas City, my hoemtown, and the correlation it has with the minority community, especially the African American community. The prevalence rates of HIV affecting the African American population is tremendous, and the rates for African American women are exceptionally high.
AIDS is now the leading cause of death for African American women between the ages of 25-34, and are 21 times more likely to die from the immuno-deficiency disease than non-Hispanic white women. It is stated that 2 out of 3 African American women contract the virus each year, mostly from having heterosexual sexual intercourse. What can possibly be the reasoning for this deathly epidemic?
In the past decade, the African American community has been hit with so many factors that contribute to this epidemic spreading and taking its course, such as the unprotected sex that reoccurs amongst the young population, having sexual intercourse with "down low brothas" (men that claim they are heterosexual, but they have sex with other men outside of their relationship), and substance abuse. Many of the minorities, such as African Americans and Hispanics live in impoverished or low-income communities, where education is not a priority and people are faced with the risks of exposing their bodies to a variety of infectious diseases. Many minority women that are in relationships with a significant other of the same culture are faced with that partner being incarcerated, which they are then exposed to many infectious diseases and become intertwined in the pool of homosexual intercourse that happens in the prison system. Unfortunately, these men that are released from incarceration are not tested after being released and are left to expose their partners to the virus.
How can we prevent this from happening? How can we prevent the rates from increasing in this community? How can we better educate the population on healthier acts?