In what year did Stanley Prusiner discover prions?

Stanley Prusiner discovered prions in 1982. His groundbreaking research identified these proteinaceous infectious particles as the causative agents of several neurodegenerative diseases, leading to a new understanding of how infectious diseases can be transmitted without nucleic acids. Prusiner’s work challenged existing paradigms in microbiology and earned him the Nobel Prize in Physiology or Medicine in 1997 for his discovery.