ByKarl Schmid Tuesday, December 10, 2024 5:20PM SAN FRANCISCO -- For 37 years, the world has come together every December 1 to recognize World AIDS Day. It's been 43 years since the first reported case of HIV, and advocates say there is still more work to be done. Vince Cristostomo, who was diagnosed at 28 years old and told he wouldn't live past 30, is now 63. "It's amazing how far we've come and how far we haven't," he said.