Dr. Bogoch, we know that vaccine effectiveness wanes over time. Efficacy is substantially reduced, it seems, about three or four months post-jab. How long after the third booster is efficacy substantially reduced? What do you think is a good long-term plan, if that's the case, given that the European Medicines Agency has stated that they don't think we can boost ad infinitum?
On March 30th, 2022. See this statement in context.