Just because it didn’t happen doesn’t mean that it’s impossible. To achieve the goal, you would have needed to seriously push vaccine effectiveness and not just declare that the first approved vaccine to be good enough.
If you look at what people who actually care about vaccine effectiveness do because they are mainly driven by personal benefits instead of trying to get a drug approved you can look at examples.
Stöcker gave more then two vaccine doses in the first months to build more immunity and on the other hand it seems that the official approved vaccines restricted the amount of doses that were given to make people more likely to sign up for the vaccine.
The other is the RaDVaC project that focused on vaccinating in a way that gives muscosal defense (the first line defense against infections) and also focused on building antibodies in a way that makes the vaccine more effective against variants.
If you look at what people who actually care about vaccine effectiveness do because they are mainly driven by personal benefits instead of trying to get a drug approved you can look at examples.
Stöcker gave more then two vaccine doses in the first months to build more immunity and on the other hand it seems that the official approved vaccines restricted the amount of doses that were given to make people more likely to sign up for the vaccine.
The other is the RaDVaC project that focused on vaccinating in a way that gives muscosal defense (the first line defense against infections) and also focused on building antibodies in a way that makes the vaccine more effective against variants.
More dakka would have been possible.