A significant area of concern is how the vaccine interacts with the immune system .... particularly those who already have an autoimmune condition.
One area of concern that is being studied is that people who take immune suppressing drugs for their autoimmune condition ..... this is about 40 million people in the US .... the vaccine simply may not work because it doesn't get a response from the suppressed immune system.
That concern is outline here ...
https://covid19.nih.gov/news-and-stories/boosting-vaccine-response-autoimmune-disease
Another area of concern is that because of the mechanism of the vaccine it may actually cause autoimmune conditions. The case for that concern is outlined here ....
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7833091/
This is just one example of why the current message .... get vaccinate or else .... get the booster or else .... doesn't necessarily fit with a large portion of the population.
It is REALLY a good idea to keep giving boosters and then more boosters or might there be serious long term effects of this strategy?
We shouldn't be acting as if the vaccine is a one size fits all solution. I have an autoimmune condition myself (I don't have to take immunosuppressant drugs) ..... I have a brother and an Aunt who do have to take immunosuppressant drugs.
Hence, the desire to find other mechanisms that may help prevent and early treat Covid.
Health officials need to stop pretending that the vaccine is a one size fits all solution and trying to force companies to fire people if they don't get in line. Thank goodness the Osha thing has been put on hold thru litigation .... I liked the quote earlier about an awakening of common sense. You don't need to be an immunologist to recognize that a lot of what is going on doesn't pass the smell test.