Silvestre, 76, was professor emeritus of infectious diseases and microbiology at Pitt’s School of Public Health, associate director of Pittsburgh’s Center for LGBT Health and Wellness, and co-investigator for the Pitt Men’s Study, an NIH-funded research project that was key to the understanding of AIDS. He died on Sept. 1, 2022, at his home in Burlington, Vt., from heart-related problems.