A large multi center study published in JAMA Network Open found that adults who received the 2024–2025 COVID 19 vaccine were 40% less likely to be hospitalized and nearly 80% less likely to experience respiratory failure requiring ventilation or death, underscoring the vaccine’s strong protection against severe disease. Led by the IVY Network with Vanderbilt Health as the coordinating center, the findings highlight that updated COVID 19 vaccines remain highly effective despite viral evolution, reinforcing the importance of staying up to date with vaccination.