Antibodies to the S-Protein “vaccine”? No- the principle to injecting foreign protein S-Protein mRNA is to make more of the S-Protein to supposedly “compete” with any inhaled S-Protein on a virion containing the actual virus contents. Somehow having more S-Proteins in the blood keeps real S-Proteins from inserting into ACE2 receptors on the surface of lung cells within bronchi. One would be better off by preventing ACE2 uptake of S-Protein by supplements and ACE-Blocker agents. Which is why the “vaccines” were and are an absolute false flop.
The zoonotic nature of SARS-Covid 19 means there is always a natural reservoir of the virus that can jump to humans. Unlike a true vaccine, like polio for example which does not have a zoonotic capacity.
Wow, you really do not understand how immunity works at all, do you?
The purpose of a vaccine is not to load up your blood with a stand-alone virus protein that will compete for cell surface receptor binding with the same protein located on the surface of virus particles.
The purpose of a vaccine is to teach your immune system to make T- and B- cells and antibodies against the virus protein. The job of the T-cells is to kill cells that have that protein because they are infected. The job of B-cells is to make antibodies that attach to the protein. Those antibodies prevent the protein from functioning by physically blocking its ability to attach to ACE2 receptors and other cell components that allow the virus to enter the cell.
The zoonotic nature of SARS-CoV-2 means that it can jump back and forth between humans and animals, like many other viruses. However, this does not mean that there will remain a natural reservoir of SARS-CoV-2. Once it has jumped into an animal population (deer, for example), its evolution is shaped by deer biology, not human. Thus, any SARS-CoV-2 circulating in deer is becoming better at infecting deer and may eventually become incapable of infecting humans.
The first SARS coronavirus disappeared once that pandemic was controlled in 2003. It has not been found again, even though it, too, came from an animal reservoir.