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Newer COVID-19 Subvariants Are Less Vulnerable to Immunity Induced by Vaccination and Previous Infection, Researchers Find
June 24, 2022
BOSTON, Massachusetts, June 24 (TNSjou) -- Beth Israel Deaconess Medical Center issued the following news release:

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 and BA.5 - not identified in the United States until late April - now account for more than 21 percent of new cases, according to the Centers for Disease . . .

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