A new study using serum from human blood samples suggests neutralizing antibody levels produced by two-dose mRNA vaccines against the original and early variants of the SARS-CoV-2 virus wane substantially over time, and offer essentially no protection against the omicron variant.
Booster critical as COVID-19 vaccine-induced antibodies wane in 6 months, don’t protect against omicron
March 1, 2022
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