This genetic material is then naturally absorbed by cells which it forces to produce the 'spike' proteins found on the outside of the virus. The Pfizer and BioNTech vaccine is one called an mRNA vaccine. Picture taken November 29, 2020. 'The reason to do that is, for example, the viral based vaccines trigger a much greater cellular response than, say, mRNA. Moderna's vaccine works in the same way.
Pfizer is a worldwide phenomenon.
( z0 phenomenon :domain ( z1 company :name ( z2 name :op "Pfizer" ) ) :location ( z3 worldwide ) )
(z0 / phenomenon
    :domain (z1 / company
                :name (z2 / name
                          :op1 "Pfizer"))
    :location (z3 / worldwide))
Pfizer is a worldwide phenomenon .
z1 :name z2
z2 :op1 0
z0 :location z3
z0 :domain z1