Bivalent COVID-19 booster outperforms monovalent version --new study

Study shows bivalent COVID-19 booster outperforms monovalent version CIDRAP

A new Italian study finds that estimated relative vaccine effectiveness (rVE) was 49.3% for the bivalent (two-strain) booster and 26.9% for the monovalent (single-strain) booster, with protection lasting at least 4 months for the bivalent booster and waning fast for the monovalent version. The study appears in The Lancet Infectious Diseases.

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