I can just provide some of the facts that NACI has been looking at with regard to vaccine effectiveness. We do know that for two doses, the vaccine effectiveness against infection decreases over time and it can end up being quite low. With three doses, we do see protection against infection of around 60%. That does decrease as well over time.
With severe disease, we see vaccine effectiveness for two doses at around 65% to 85%. When we add the booster dose, we get protection against severe disease, like hospitalization, in the high 90s. That may decrease over time. That's something we are watching closely.
Thank you.