[sam_dal]

That is the case with any infection/immunization which changes our immune system. There will be some people who will react differently down the line from what would have been had they not been vaccinated. People who had chicken pox show up with shingles later in life.

[johnisgood]

I understand that, I just have concerns regarding the safety of this particular vaccine. They say it is revolutionary, but if this is really that, then is this not a new vaccine with unknown long-term risks? I read this on CDC's website: "There are currently no licensed mRNA vaccines in the United States. However, researchers have been studying them for decades.". This is not too convincing still.