This genetic material is then naturally absorbed by cells which it forces to produce the 'spike' proteins found on the outside of the virus. 'Antibodies block the uptake of viruses into cells, and the T cells identify those cells that have been infected and then take them out, so you ideally want to have both. 'Of course, it adds complexity to the process, but there is a robust plan for alternative routes, and mitigation for those, in place. The thinking behind it is different vaccines provoke different parts of the immune system  the main substances being antibodies and T cells. This makes it look like the coronavirus and so triggers an immune response in the same way that being infected with the real thing would.
cells of the virus are not human cells.
( z0 cell :domain ( z1 cell :part-of ( z2 virus ) ) :mod ( z3 human ) :polarity - )
(z0 / cell
    :domain (z1 / cell
                :part-of (z2 / virus))
    :mod (z3 / human)
    :polarity -)
cells of the virus are not human cells .
z1 :part-of z2
z0 :mod z3
z0 :polarity 0
z0 :domain z1