This Week In Wellness a study published in Scientific Reports has shown that black, green and matcha tea were all effective at inactivating the Omnicron subvariant of SARS Coronavirus 2. https://www.news-medical.net/news/20231005/Green-matcha-and-black-tea-Effective-weapons-against-Omicron-subvariants-research-reveals.aspx https://www.nature.com/articles/s41598-023-43563-3