UKHSA: Vaccine effectiveness drops to just 40% – 50% ten weeks after booster dose

Two to 4 weeks after a booster dose, vaccine effectiveness ranged from around 65% to 75%, dropping to 55% to 70% at 5 to 9 weeks and 40% to 50% from 10+ weeks after the booster.  More...

UK.GOV: Vaccine booster doses wane after just 10 weeks

“The latest data suggests this extra protection starts to wane more rapidly, being about 15 to 25% lower from 10 weeks after the booster dose.”  More...

UKHSA bombshell: Effectiveness of COVID-19 vaccines against the Omicron variant

“Among those who had received 2 doses of [AstraZeneca], there was NO protective effect of vaccination against symptomatic disease with Omicron from 15 weeks after the second dose.”  More...