New York Times: San Francisco Is Changing Face Of AIDS Treatment New York Times: San Francisco Is Changing Face Of AIDS Treatment In 1992, San Francisco was home to some 2,300 new HIV diagnoses that year alone. Twenty-three years later, that number is about 300. In that time, a lot has changed in the world of HIV treatment and prevention, and the City by the Bay has consistently been at the forefront of that progress, creating a model that other cities and the world are attempting to replicate.