AIDS is the disease caused by the damage that HIV does to your immune system. You have AIDS when you get rare, dangerous infections or have a super low number of CD4 cells. AIDS is the most serious stage of HIV, and it leads to death over time.
1 One in every 330 Americans will develop cancer by the age of 20. 2  On the average, 12,500 children and adolescents in the U.S. are diagnosed with cancer each year. 3  On the average, 1 in every 4 elementary school has a child with cancer. 4  The average high school has two students who are a current or former cancer patient.
It's estimated 14 million were diagnosed with cancer in 2012 and 22 million will be diagnosed by 2032. The most commonly diagnosed cancers worldwide are cancers of the lung, breast and colon. The most common causes of cancer deaths worldwide are lung, liver and stomach cancer. In certain areas of Africa and Asia, cervical cancer is the leading cause of death in women.