Debulking SARS-CoV-2 in saliva using angiotensin converting enzyme 2 in chewing gum to decrease oral virus transmission and infection User Peeecee7896, in the COVID-19 subreddit, 08 Dec 2021
University of Pennsylvania-led Study Team Reveal ACE2 Chewing Gum Just Might Inhibit SARS-CoV-2 Oral Transmission User ZephirAWT, in the Science: Uncensored. Science with no political censorship by Mods subreddit, 04 Dec 2021