It’s getting more and more likely

That boosters – 3rd shots – of the mRNA vaccines will be needed by at the very least seniors and others with either impaired or lower overall immunity.

Latest bit of evidence is this study comparing immune responses in vaccinated elderly persons to those in healthcare workers (HCW), and the results are pretty clear that using several different criteria, the immune response in the elderly waned significantly sooner than it does in these HCWs.

So it’s getting clearer than 3rd doses will be needed.

What’s still very unclear is how soon they will be needed and will they be needed by all those falling into the arbitrary category of seniors and people with impaired immune responses.