The study was not set up to look at any differences between the two. The Pfizer/BioNTech was available first so there is more data, but the Oxford/AstraZeneca was mostly used in the older age group. That rose to more than 85% after the second dose. He said the numbers were consistent with a relatively constant protection of about 70% at that stage. Both vaccines are being given as single doses until up to 12 weeks.
the study was not set up as a study.
( z0 set-up :ARG1 ( z1 study ) :polarity - )
(z0 / set-up-03
    :ARG1 (z1 / study-01)
    :polarity -)
the study was not set up as a study .
z0 :polarity 0
z0 :ARG1 z1