Covid: How long does vaccine based immunity last?
Sebastian Rushworth M.D. | 5 November 2021
Sebastian Rushworth M.D_
Below is the article on the Swedish study referred to by Dr Rushworth, which has been submitted to The Lancet and is currently available as pre-print:
Effectiveness of Covid-19 Vaccination Against Risk of Symptomatic Infection, Hospitalization, and Death Up to 9 Months: A Swedish Total-Population Cohort Study