K,+DK,+WDK

__KNOW__
 * 40 million worldwide have AIDS
 * Treatments for AIDS are very expensive
 * It is transmitted via blood transfusions, mother through child, and sexually
 * HIV is found in saliva but it can't be transmitted though it
 * It is a terminal disease
 * Africa is very much affected by AIDS

__DON'T KNOW__
 * How many people have died from AIDS?
 * What year did AIDS start?
 * Does it affect the red blood cells or the white blood cells?

__WANT TO KNOW__
 * How did this disease start?
 * Is it even possible for there to ever be a cure?
 * Can stem-cell research help find a cure for AIDS?