In the late 1970's a disease,known as AIDS, came around that affects your immune system and leads you to get additional diseases. AIDS currently has no cure and affects millions of people today. Though there is no cure, you can take medication to minimize the symptoms as much as possible. AIDS can be spread not only by intercourse but by blood transfusions, dirty needles, even by birth.
An Animated Video About the HIV/AIDs Epidemic In the US - RaffertyWeiss Media