Israel has shot Pfizer to all citizens and statistics evidences the result is meeting all expectations. I would put this vaccine on the first place. The shit stuff like Sputnik that comes from Russia I wouldn’t even consider because there’s no true telling what they put in it. A good read on how
pfizer-BioNTech vaccine works.
If your Pfizer vaccine was available to everyone, then there was no need for us to take Sputnik V, right? The problem is that Pfizer has restricted their sales to rich countries, where they can sell their vaccine for $75 per individual. When Brazil and Argentina asked them for the supplies, Pfizer wanted the army bases and gold reserves of these countries
as collateral in returns for the medicines. On the other hand, Russia provided a lot of poor nations with the Sputnik V vaccine. And the efficacy as per
The Lancet is 92%, compared to 95% for the Pfizer vaccine.
To be a little bit more clear about what seemed to be happening in these negotiations:
Pfizer demanded that Pfizer could not get sued for negligence (including criminal negligence I believe) by the nation's court system. Some nations had problematic legislative or constitutional text. They were induced to rapidly modify their laws prior to inking a deal. The collateral (military bases, bank reserves, etc) was to guarantee that Pfizer would not be found negligent in the nation's court systems and the collateral would be forfeited should that happen at some point in the future.
What we know of these deals is because negotiations fell through in Argentina and someone blabbed or leaked some of the details which were supposed to be kept secret. It would seem probable that all countries who did ink an agreement with Pfizer did agree to those terms or something like them.