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.
The cancer mortality rateâthe number of deaths due to cancer per 100,000 people per yearâamong children ages 0 to 19 years declined by more than 50% from 1975â1977 to 2010â2014 . Specifically, the mortality rate was slightly more than 5 per 100,000 children in 1975 and about 2.1 per 100,000 children in 2010â2014.