NewslettersImmunology of Infectious Disease News Antigenic Cartography of SARS-CoV-2 Reveals That Omicron BA.1 and BA.2 Are Antigenically Distinct By lbeveridge - September 27, 2022 0 Researchers used antigenic cartography to quantify and visualize antigenic differences between early SARS-CoV-2 variants using hamster antisera obtained after primary infection. [Science Immunology] Full Article