Hi Karl
I've been lurking a while, but this is my first post. I've been very worried that people who got vaccinated were back to square 1 in terms of immunity after the vaccine generated antibodies wore off, generally understood to be after a 6 month period. A new study, albeit done by vested interests, shows 'durable cellular immunity for at least 6 months after mRNA vaccination with persistence of high-quality memory B cells and strong CD4+ T cell memory in
most individuals'.
Here is the paper https://www.biorxiv.org/content/10.1101/....