COVID-19 VaccineCOVID-19 VaccineEffectiveness Reporteffectiveness over time.Study reveals insights on vaccinePublic and Global HealthReal-World Study on COVID-19 Vaccine EffectivenessAnalyzing the effectiveness of COVID-19 vaccines over time using real-world data.2025-07-04T20:18:30+00:00 ― 5 min read