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: Vaccine Immunity : Cookham v Coronavirus April 06, 2022, 03:55:55 PM A Blog from the UKHSA reports that 20 weeks after two doses of the Oxford vaccine protection from symptomatic disease caused by the Omicron variant can drop as low as 0% in some cases, and as low as 10% after 25 weeks for Pfizer.
However, even after a booster, protection is thought to drop to somewhere between 30% and 40% after 15 weeks. Symptomatic disease is generally mild. |