Well, this is not a case of Greek translations, but about the plain context. This claim of the vaccine being the mark of the beast is just another erroneous teaching, as it does not match up with scripture. Let's look at it again and break it down.
"And the second beast required all people small and great, rich and poor, free and slave, to receive a mark on their right hand or on their forehead, so that no one could buy or sell unless he had the mark—the name of the beast or the number of its name."
From Rev.13:1-10, the fist beast/antichrist is in view. Then in verses 11 thru 17, we are introduced to a second beast, which is later referred to as 'the false prophet.' It is this second beast who is the one causes all people to receive that mark, which is defined as:
HELPS Word-studies
5480 xáragma – properly, an engraving (etching); (figuratively) a mark providing
undeniable identification, like a symbol giving
irrefutable connection between parties.
5480 /xáragma ("brand-mark") was originally any
impress on a coin or a seal, used by an engraver on a die (stamp, branding iron).
5480 (
xáragma) later became "
the identification-marker" (like with an
owner's unique "brand-mark").
* Goes in/on the right hand or forehead
* Without it, no one will be able to buy or sell
A vaccine is a one time injection and is not specific to being received in the right hand or forehead. In fact I would go so far as to say that, the hand or forehead is not a common area to receive vaccinations, but is usually the shoulder, the thigh or some other meatier part of the body. Suffice to say, receiving a vaccine would be a one-time application where the fluid disperses into the body to build up resistance to, in this case, the corona virus. Where this coming mark will remain in/on the hand or forehead.
For those who receive the mark, it will be a permanent device located in the hand or the forehead, which will allow people to digitally access their bank accounts (just like with the debit card) to credit and debit their bank accounts. To put buying and selling in perspective for today, it would be referring to electronic crediting and debiting, which is what most of the world is now using. This mark is eventually going to replace the swiping of debit/credit cards, so that the individual can perform buying and selling with the scan of that mark.
This is why I sent you those videos of what is already taking place. This is the technology for the coming mark. Currently, an RFID chip is what is being inserted under the skin between the thumb and the index finger. I believe this technology will continue to evolve into something smaller and more applicable as the time period of the beast draws nearer. The fact is that, people in Sweden have already been receiving this device in the hand and are using it to make their purchases (buying).
There is another erroneous teaching of the mark by the Seventh Day Adventists, who interpret the mark allegorically. They claim that the forehead means 'making a decision' and the hand 'taking action,' so that the mark of the beast becomes making the decision to observe the Sabbath day on Sunday. However, there is nothing in the context that would lead the reader to look for a symbolic meaning of the mark, not does the keeping of the Sabbath have anything to do with being able to buy and sell. In fact, the word Sabbath does not even appear anywhere in the book of Revelation.
You of course are free to believe what you want about this subject, but I wanted to give you some clarity to this prophecy. Receiving or not receiving a vaccine just does not fit the scripture. For example, if one does not receive the vaccine, it will not keep them from buying or selling.