Only 20% of Americans have effective protection against Omicron infection

By | June 21, 2022
In a recent research paper published in the Clinical Infectious Diseases journal, scientists analyzed the population immunity against pre-Omicron and Omicron severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2) variants in U.S. counties and states up until December 1, 2021.

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