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.
At least 12.6 million people are diagnosed with cancer around the world every year, and more than 7.5 million die of the disease â a toll that is steadily rising in every country as the population expands and people live longer, according to research by the World Health Organisation.e have poured billions upon billions of dollars into cancer research, and yet cancer rates continue to explode. Cancer is the leading cause of death worldwide, and according to the World Health Organization the number of cancer deaths globally is expected to nearly double over the next 20 years.