Tweet from freja_kirsebom at December 10, 2021 at 08:57AM
Our first initial estimates of vaccine effectiveness (VE) against symptomatic disease with the Omicron variant are now out. In short, VE remains high following a Pfizer booster after AZ or Pfizer, but is reduced after two doses.
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— Freja Kirsebom (@freja_kirsebom)
Dec 10, 2021
from http://twitter.com/freja_kirsebom