In study led by @csimonich.bsky.social & Teagan McMahon, we quantify antigenic evolution of RSV F Important because: 1️⃣ RSV top cause of infant hospitalization in USA 2️⃣ New antibodies & vax can prevent hospitalizations 3️⃣ Will virus evolution erode their efficacy? www.biorxiv.org/content/10.1...