Posted 8/1/2020 12:24 (#8408840 - in reply to #8408658) Subject: RE: T cell immunity to Covid-19...many of us have it.
North of London
There is never anything simple and straight forward in immunity.
We have all probably had a flu virus at one time or another and yet a little mutation and we can get it again.
Expect there will be much to learn about the covid virus yet