“MILD” DOMINO-EFFECT—Over 5000 Christmas-time flights ✈️ have been canceled globally as airlines say the fast-spreading #Omicron variant is preventing airline staff from working. ➡️to all the dismissive “it’s mild” folks—this is a “mild” disruption too.https://t.co/uoWPwKKMBd

— Eric Feigl-Ding (@DrEricDing) December 24, 2021