Thanks for clearing this all up! I knew I reached out to the right person. No one has been able to explain to me how they would work differently or how the antibodies are to the protein in such a clear way. I agree that not every infection would offer life time immunity. I guess we don't really know until we have done a longitudinal study on it. I look forward to seeing if you do an article on natural immunity and a vaccine afterward.
Thank you once again.