Singapore study of Autoimmune (AIRD) risk w/ COVID infx compared 104 179 DELTA + pts vs 666 575 PCR neg controls (~80+% Vax) & 375 903 Omicron+ vs 619 379 controls (~75% boosted). Found no signif incr risk of AIRD w/ COVID infx. https://t.co/gXzWdotzvL https://t.co/UsQpwgsyTD