So I am now eligible to book my booster but have some questions. I am double jabbed and had Covid a few months ago, assuming I have some additional antibodies due to this would it be better to delay the booster for a few months to boost protection when maybe previous infection protection wanes? Also is there any thinking around how long the boosters will be effective for or what requirements for travel might be. Just thinking ahead to next summer and whether boosters will be a requirement for vaccine passports.