We saw the amazing performance of Pfizer and Moderna's two mRNA COVID vaccines in their RCTs. As encouraging as trial performance is, we always want to know how those numbers hold up under large-scale, real-world pragmatic conditions. Well, we now have three new pieces of information on that. And, for the cherry on top, we get evidence of performance against asymptomatic infection! Dr. Jarvis does a quick review of the latest evidence on vaccine performance.