Top 5 Takeaways 1. Effectiveness of Bivalent Booster: The study found an 84% effectiveness of the bivalent booster against COVID-19 hospitalization compared to unvaccinated individuals. 2. Relative Vaccine Effectiveness: Compared

In this entry of MMWR Booster, a summary is provided about findings regarding COVID mRNA Vaccine effectiveness in preventing severe hopsitalizations and outcomes.