[watchfirst9]

I think you put the wrong link 

Massachusetts Medical Society https://www.massmed.org 

New England Journal of Medicine https://www.nejm.org





not https://www.technologynetworks.com 

You thought process can be quite simple, even with the vaccine today after nearly 1 year …. still not enough …. do you know even Viet, Laos, Indo do not have enough vaccine.
You wanna wait for one with less side effect …. to satisfy your selfish wishes …. how many more millions will die.

If you like to read social media …. read this 

https://www.scientificamerican.com/artic...rtly-why1/

Contrary to improve is never selfish but for good for all.  

While those I present is from test findings. Above is as they put it, a possible theory. 
Especially we know Omicron is one two decades different from delta, beta etc.
Such mutation cannot be from an normal people, but maybe from those 
with severe weak immune system, current jab perform poorly on these people. 
Also such big mutation can also be jumped from animals as well.
If the former is the case, is it not more so we need to have better solution.

Not enough vaccine overseas, then send 2020 version to them.
We can purse better solutions nothing wrong with that.