vinnyt77 firstly, a yellow fever vaccine is a one-off thing which doesn’t even require a booster - there are only a few countries which request that you’ve had it even within the previous 10 years.
With governments constantly stoking concerns about variants of Covid being discovered - which is inevitable given the nature of the virus but not necessarily any more dangerous - it could effectively lead to people being forced to be given some kind of jab every year for little reason. Remember, this is something which for a significant percentage of adults is no more dangerous than the flu. Long-term effects of mrna vaccines are also completely unknown.
Plus, as I’ve outlined earlier in this thread, making people dependent on being able to obtain a vaccine to participate in public life is open to all sorts of potential abuse and unfair discrimination by governments. Imagine if young people are basically prevented from ever leaving their own country because they are always placed at the bottom of a never ending vaccine booster jab queue - you’ve basically created another version of the DDR without even having to erect a wall.
Next, while vaccine passports do exist for some countries, these are not necessarily ones which require visa-free travel for most people anyway. Covid passports could effectively ride roughshod over existing open travel arrangements such as the Schengen zone. It can give countries excuses which they didn’t have before to deny people from visiting their country or leaving their country for political reasons; open travel corridors between countries for their people could end up being as fiercely contested as trade deal negotiations.
Fourth, it does not necessarily appear as if covid passports will only be needed for allowing people to leave or enter a country - it seems governments are open to the possibility (or might even demand) that certain businesses check and discriminate against people based on their covid passport while within their own country. Are you really alright with the possibility of say governments only allowing people with a recent vaccine to enter a nightclub in perpetuity? No end date is currently given for restrictions. What if they demand that mass political demonstrations are also only permissable for those with a “valid” vaccine passport?
Lastly, as I’ve also already pointed out - who is to say this stops at covid information being on the passports? The EU are considering that such passports will be digital - not just say a printed out confirmation form from a doctor. Who’s to say that they don’t start adding other information on to such a digital card? It would be easy to do. Then they subsequently facilitate countries or businesses to discriminate not just on covid but on other information which is on the card. Once such a precedent has been set, what could stop them?
