The Pfizer/BioNTech was available first so there is more data, but the Oxford/AstraZeneca was mostly used in the older age group. It is an important point but we cant at the moment say anything about that, he said. The study was not set up to look at any differences between the two. These results are very encouraging and have given us great reasons to be optimistic for the future, said Professor Aziz Sheikh, director of the University of Edinburghs Usher Institute. Sheikh cautioned at a media briefing that the results are preliminary data, yet to be peer-reviewed by independent scientists, but added: I am very encouraged.
The PMI vaccine reduced the hospital admissions.
( z0 reduce :ARG0 ( z1 vaccine :name ( z2 name :op "PMI" ) ) :ARG1 ( z3 admit :ARG1 ( z4 hospital ) ) )
(z0 / reduce-01
    :ARG0 (z1 / vaccine
              :name (z2 / name
                        :op1 "PMI"))
    :ARG1 (z3 / admit-02
              :ARG1 (z4 / hospital)))
The PMI vaccine reduced the hospital admissions .
z2 :op1 0
z1 :name z2
z0 :ARG0 z1
z3 :ARG1 z4
z0 :ARG1 z3