The above quote tell antibody induced immune response esp related to Virus. It also suggests 4 functions of antibodies for virus before their entry into host cells.
Good! Next step - do you understand that some adaptive immune responses target bacteria, and aren't really effective against viruses?
No, I do not know. But one antibody generation and function come under humorol immune system. As my quote in my last past, such sntibodies act before infecting the virus to the cells.
I simply understsnd, whatever which support phagocytosis of virus in phagocytes also support possibility of getting ADE and one is antibody. I also do feel that covid specific antibodies as generated due to whole virus and due to just spike protein, simply differ in quantity not in quality. Not so?
Can there be some caveat or protection from already generated antibodies against Covid 19 virus to its ADE capable variant if unfortunately it is evolved? I think yes. Probably these Antibodies may be obsolete or ineffective for the new such variant to carry its phagocytosis finction. Not so?