Newer COVID-19 Subvariants are Less Vulnerable to Immunity Induced by Vaccination and Previous Infection, Researchers Find
Since the initial highly-infectious SARS-CoV-2 Omicron variant (officially known as BA.1 or B.1.1.529) of COVID-19 emerged last fall, new subvariants of Omicron continue to evolve. Notably, the Omicron subvariants BA.4…