Vaccine Efficacy in Patients with Seronegative SpA Vaccine efficacy remains an important topic at #ACR22 given the ongoing COVID-19 health crisis, current influenza season, and recently published 2022 ACR guidelines. https://t.co/2PHrJYV8Om Written by Dr. Sims ( @DrCassySims) https://t.co/hUFnPIDzUU