Surely if vaccination is about giving human beings weak doses, or altered doses of a bug, then there are risks when scientists who were in at the beginning are not monitoring and regulating the manufacture, storage and administration of vaccines.I say that because your dealing with the virus itself and how it travels through a society. It's like antibiotics, too much use has made individuals immune to their beneficial effects and, in turn, that means individuals in the whole of societies are also exposed more to chest infections, etc., because some strains of the infection have been allowed to become resistant.
In the same way, how vaccines are administered needs to be monitored, to recognise and manage problems with efficacy and to respond. To make a comparison, again, with antibiotics, we have a problem now with GPs over-prescribing, and that is with firm protocols in place. Astrozeneca and the others need to keep control of how Covid vaccines are being used, in my opinion, to keep the process of mass vaccination safe.
I think distribute vaccines for free across the globe, yes: there should NOT be vaccine inequality. I don't think give out the patent - the original 'recipe' , though. The main manufacturing companies are probably already tweaking the 'recipe' and are going to continue to need to, as new strains develop. This is a careful and precise business. We don't want lots of scientists, all over the world, all adjusting the patent in the way they see fit, making their own versions, as that could affect the way the actual virus spreading through society develops, mutates and affects victims all over the world.
I would rather see a programme where the big manufacturers/ developers set up a programme to go to countries and vaccinate the population, for free. I would not like to see governments, where there is no free health service, selling the vaccine to the rich who can afford the first two doses and boosters, and poor members of society not getting the vaccine.