Explain what antibodies do again... ;-)
Originally Posted by texassapper
Antibodies neutralize the protein component of the virus. The "spike protein" component of the CV19 virus allows the CV19 virus to get across the cell membrane of the lung cells and other cells in the nasal pathway. Once CV19 get into a patients lung cells it takes over the the biochemistry of the lung and manufactures a sticky like substance which makes it difficult for the patient to breath (take in O2 push out Co2) thus the Doctor puts the patient on O2 and for severe cases the ventilator.
A virus can mutate (change its chemical stucture). Proteins are made up of amino acids. One change to one amino acid of the protein and you have a mutation. Thus, the patient's immunity system would have to make a new antibody that is specific to the mutation. A person that was infected with CV19 and recovered (his/her immunity system made antibodies to neutralize the spike protein of CV19).
Regeneron's product worked for Trump and could work for other's for this years version of CV19. CV19 hasn't started to mutate yet.
You may know a little about government email systems but not that much about biology.