Vaccine Immunity

[Cookham v Coronavirus]

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.