What to Know About the Omicron Variant By Vincent Iannelli, MD / December 22, 2021 / boosters, covid tests, Delta variant, monoclonal antibodies, mutations, Omicron, Peter McCullough, SARS-CoV-2 variants, Sotrovimab, variants Omicron has quickly become the dominate COVID strain in the United States. Share this:FacebookTwitterRedditPrintLinkedInPinterestEmailTumblrWhatsAppLike this:Like Loading...