specific antibodies are. The article tells about three different specific antibodies, targeting RBD, N-terminal domain, and S2 part of spike. T-cells are even

specific antibodies are. The article tells about three different specific antibodies, targeting RBD, N-terminal domain, and S2 part of spike. T-cells are even more amazing in the way they target portions of proteins that are vaguely similar. So you could be exposed to some pathogen A, and have T-cell immunity and recognition against some pathogen B (which is quite distinct and different from A). https://med.stanford.edu/news/all-news/2013/02/immune-systems-of-healthy-adults-remember-germs-to-which-theyve-never-been-exposed-stanford-study-finds.html#:~:text=In%20the%20early%201980s,of%20Virginia https://med.stanford.edu/news/all-news/2013/02/immune-system...