Has anyone come across this study? ucd.ie/research/news/2022/v... Early on in the pandemic I was told by my haematology team that it was no use measuring antibody response as no one knew what level was needed for a sensible level of protection against the virus. This study is now measuring response to determine the need and/or timing of booster vaccines. So there must now be some sort of consensus on levels of antibodies and degrees of protection. I would like to know how well the vaccine (4 doses so far) has worked for me. Mask wearing has declined to a very low number in my area and although I use an "industrial" FFP3 valved mask (I'm trying valved versions to reduce my problem with my glasses misting up) it would b good to know if I can remove it is otherwise reasonably safe crowd free or outdoor environments.
Ian C