December 1 is observed each year as World AIDS Day to unite people in efforts to fight the disease. An estimated 35 million people have died of the chronic immune system disease globally.
On World AIDS Day, we look at some famous people who battled the condition, some speaking out years after the diagnosis because of stigma.
1) Freddie Mercury
Queen frontman, one of the greatest rock singers in history, fought against AIDS in private for several years. He announced his diagnosis shortly before his death in November 1991.