So much confusion about Vaccine Efficacy vs. Effectiveness
— Vinay Prasad, MD MPH 🎙️📷 (@VPrasadMDMPH) March 25, 2022
For transmission/ mild symptoms/ severe disease/ hospitalization/ death
I clarify these concepts; relevant to kids vax 6mo-6yrs, boosters, Moderna, Pfizer, 4th dose pic.twitter.com/Vk3SeEHWh6